629 results about "Alkylation" patented technology

The invention belongs to the technical field of organic porous materials, and relates to an acenaphthequinone diimine palladium functionalized super-crosslinked microporous polymer as well as a preparation method and application thereof. The preparation method specifically comprises the following steps: carrying out Friedel-Crafts alkylation reaction on (1E, 2E)-N1, N2-bis [2, 4, 6-tri-(benzhydryl phenyl)] acenaphthylene-1, 2-diimine and dimethyl formal, 1, 3, 5-triphenylbenzene or tetraphenylmethane, so as to obtain an organic porous polymer; and carrying out coordination on the organic porous polymer and PdCl2 to obtain the acenaphthequinone diimine palladium functionalized super-crosslinked microporous polymer with catalytic activity. The super-crosslinked microporous polymer has the advantages of high stability, large specific surface area and high palladium loading capacity, and can catalyze the direct C-H bond arylation reaction of brominated aromatic hydrocarbon and heteroaromatic hydrocarbon to synthesize a linked heteroaryl compound; the preparation method of the organic porous polymer catalytic material is simple and suitable for industrial production.

The invention provides a preparation method of a Joule heat-assisted super-wetting metal net, a metal net with super-hydrophilic performance and a metal net with super-hydrophobic performance. According to the material, carbon nanotubes are firmly adhered to the surface of a metal net through polydopamine mediation to construct a micro-nano coarse structure, a hydrophobic alkyl compound is grafted through a sulfenyl three-component coupling reaction to reduce surface energy, and a super-hydrophilic / underwater super-oleophobic metal net and a super-hydrophobic metal net are prepared respectively. The Joule heating effect of the material is remarkably enhanced by introducing the carbon nanotubes, so that the temperature of the material can be rapidly increased to 100 DEG C or above within 20 seconds under the ultralow voltage of 2.0 V. The characteristic can be effectively used for in-situ heating viscosity reduction of high-viscosity crude oil, continuous and efficient oil-water separation is achieved in a double-channel separation device, the crude oil flux reaches up to about 3985 L.m <-2 >. H <-1 >, and the separation efficiency exceeds 98.6%. The method is also suitable for stainless steel meshes with micron-sized apertures, and can realize efficient separation of various crude oil emulsions.

The invention relates to the technical field of photoinitiators, and provides a triplet-triplet energy transfer (TTET) free radical I type photoinitiation system, a photocuring composition and application thereof. The system comprises a boron dialkylated dipyrromethene free radical I type photoinitiator and a long wave absorption photosensitizer, the photosensitizer is preferably an osmium (II) complex, and the mass ratio of the photosensitizer to the photoinitiator is preferably 1: 5-1: 200. Under the irradiation of a 650-750 nm light source (preferably a 690 nm LED), the photosensitizer enters a triplet state through intersystem crossing and generates TTET to the photoinitiator, so that the photoinitiator is uniformly split in the triplet state to generate free radicals, thereby initiating polymerization / cross-linking curing of monomers such as (methyl) acrylate and the like. The embodiment shows that the double bond conversion rate of the TPGDA can reach more than 80% within 10 minutes under the conditions of LED at 690 nm and 80 mW / cm < 2 >.

The present application belongs to the technical field of aromatic hydrocarbon production, and relates to a method and system for producing trimethylbenzene and quarterphenyl by alkylation. Light aromatic hydrocarbons and methanol are used as raw materials, and alkylation is carried out under the catalysis of a modified molecular sieve catalyst and at a temperature of 250-600 DEG C. The material after alkylation is subjected to further alkylation under the catalysis of the modified molecular sieve catalyst and at a temperature of 250-600 DEG C. The modified molecular sieve catalyst is composed of a molecular sieve and a metal oxide supported in the molecular sieve, the molecular sieve is one or more of HY, Hbeta, IM-5, NU87, EU-1 and mordenite, and the metal in the metal oxide is one or more of Mg, Cu, La, Zn and Mo. The present application solves the technical problems of low content of trimethylbenzene and quarterphenyl components and difficult separation of trimethylbenzene and quarterphenyl in the industrial separation method by directly producing trimethylbenzene and quarterphenyl.

The invention relates to a porous aromatic ion framework material as well as a preparation method and application thereof in iodine adsorption. The structural formula is shown as a formula (I) or a formula (II), an organic monomer with electronegativity and a triazine nitrogen-containing heterocyclic compound are adopted as construction elements, the porous aromatic ion framework material is prepared through Friedel-Crafts alkylation reaction self-polymerization or copolymerization, and tedious steps such as post-modification are avoided. A large number of benzene rings exist in the polymer, an ion skeleton provides rich active sites, and the material can rapidly adsorb steam iodine and iodine elementary substances in a solution in a large amount. The porous aromatic ion framework material prepared by the invention has excellent stability, can be used as a novel solid adsorbent to capture elemental iodine from a severe environment, is easy to recover, can be recycled, and has a good application prospect in the practical application of iodine capture.

The application discloses a method and device for producing bright stock, and the obtained bright stock, which comprises the following steps: (1) contacting heavy oil with a hydrogenation catalyst under the presence of hydrogen, and performing hydrogenation reaction under hydrogenation treatment conditions to obtain a hydrogenation product; (2) performing alkylation reaction of aromatics in the hydrogenation product and C10-C20 olefins in olefin oil under the presence of a strong acid catalyst and under alkylation reaction conditions to obtain an alkylation product; and (3) performing distillation separation on the alkylation product to separate and obtain a heavy fraction with a temperature greater than 500 DEG C as the bright stock product. The method provided by the application expands the raw material source of the bright stock, simplifies the process flow, and is convenient for industrial production; and the prepared bright stock product not only has high viscosity and viscosity index, but also has good low-temperature flow performance and high oxidation stability.

The application discloses a multifunctional biological imbibition agent and a preparation method and application thereof. The preparation method of the multifunctional biological imbibition agent comprises the following steps: (S1), alkylization reaction to obtain alkyl naphthalene; (S2), chloromethylation reaction to obtain halomethyl alkyl naphthalene; (S3), halogen alkyl nucleophilic substitution reaction to obtain hydroxymethyl alkyl naphthalene; and (S4), esterification reaction to obtain the multifunctional biological imbibition agent. The application further discloses application of the multifunctional biological imbibition agent as an imbibition agent in shale oil reservoir oil extraction. The application has the following advantages: (1) the reservoir adsorption amount is small, but the good wetting reversal characteristic is still maintained, and the emulsification is weak; (2) the high-temperature resistance is strong, and the temperature resistance reaches above 200 DEG C; (3) the preparation process is simple, and the yield is high; (4) the dosage is small, the cost is low, and the economic benefit is remarkable.

The invention discloses N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone with controllable grafting density as well as a preparation method and application of the N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone. The preparation method comprises the following steps: firstly, introducing a protecting group on a phenolic hydroxyl group of a bisphenol monomer containing a benzimidazole structure, then carrying out nucleophilic substitution reaction on alkyl halide / alkyl halide sulfonic acid and-NH, and then removing the protecting group to obtain an N-alkylated / sulfonated benzimidazole functionalized bisphenol monomer; copolymerizing the monomer, a bisphenol monomer and a difluoro monomer to obtain a polymer; alkyl or alkyl sulfonic acid is introduced to a benzimidazole ring, so that-NH bonds are passivated, a steric hindrance effect is formed, and gelation of the polymer under a high polymerization degree is avoided; by adjusting the molar ratio of the monomers, the retention stability of the functional groups can be effectively controlled, and compared with the traditional grafting on the polymer, the non-regulation of functionalization and the gelation of the polymer are effectively avoided.

This invention discloses a catalyst for the alkylation of tert-butanol with styrene to prepare tert-butylethylbenzene and ethylbenzene, its preparation method, and its application. The catalyst consists of a support and active components loaded on the support. The active components are oxides of rare earth metals and high-valence oxides of transition metals. The support is H-β zeolite. The mass contents of the oxides of rare earth metals and high-valence oxides of transition metals on the support are 3-5% and 2-4%, respectively. This invention makes a breakthrough in the reaction mechanism by loading rare earth metals and transition metals onto a β-molecular sieve and using tert-butanol and styrene as raw materials for alkylation. This avoids the polymerization of styrene (raw material) and the dimerization of isobutylene (intermediate product), reduces the generation of by-products, and makes the catalytic process controllable.

The application provides a method for synthesizing triaminotriphenylmethane, which does not need to use a solvent, uses N,N'-dibenzylaniline and trialkoxymethane as synthetic raw materials, and makes N,N'-dibenzylaniline and trialkoxymethane undergo a Friedel-Crafts alkylation reaction, so as to avoid the generation of 2,4',4"-triaminotriphenylmethane isomers in a traditional synthesis method by using the steric effect of two benzyl protective groups, thereby obtaining 4,4',4"-tri(N,N'-dibenzylaminophenyl)methane with high selectivity. 4,4',4"-tri(N,N'-dibenzylaminophenyl)methane is further subjected to a debenzylation reaction under neutral conditions to form triaminotriphenylmethane. According to the chemical structural formula of the target product, the benzyl group as the protective group of the amino group is reduced under a neutral environment, and the benzyl group is removed, and the formed byproduct is only toluene, which not only ensures the high yield and high selectivity of the target product, but also is very beneficial to obtaining high-purity 4,4',4"-triaminotriphenylmethane, and conforms to the principle of green chemistry.

The invention discloses a delta, gamma-biscarboline N-alkylated derivative and application thereof. The structural general formula (I) of the delta, gamma-biscarboline N-alkylated derivative is shown in the specification, wherein R is shown in the specification. The delta, gamma-biscarboline N-alkylated derivative has anti-leukemia activity.

The application discloses a synthesis method of 2'-OMe adenosine, comprising the following steps: S1. dissolving adenosine in DMF, and reacting with a methylation reagent in the presence of a base to obtain a mixture of 2'-OMe adenosine and 3'-OMe adenosine; S2. reacting the mixture of 2'-OMe adenosine and 3'-OMe adenosine with acetic anhydride in a solvent to obtain an acetylated mixture; S3. deacetylating the acetylated mixture under the action of ammonia, and crystallizing to obtain 2'-OMe adenosine; the application uses cheap and easily available raw materials and a safe alkylating reagent, synthesizes 2'-OMe adenosine through a shorter route, avoids column chromatography operation, and provides a new synthesis method of 2'-OMe adenosine which is easy to process.

The present invention provides means with which bile acids, phenols, indoles and organic acids contained in a sample can be stably preserved without cryopreservation of the sample. A sample preservation solution of the present invention is a sample preservation solution used for analyzing at least one component selected from the group consisting of bile acids, phenols, indoles and organic acids contained in a biological or environmental sample, containing at least the following (A) and (B): (A) condensed phosphate or polyoxyethylene sorbitan alkylate; and (B) guanidinium thiocyanate, Tris-HCl (pH 7 to 9), and EDTA.

The application relates to a chiral NSiN ligand based on a phenyloxazoline skeleton, a preparation method and application thereof, wherein the chiral NSiN ligand is prepared from a chiral phenyloxazoline bromide with R or S configuration through lithiation and silylation. The chiral NSiN ligand can be used in transition metal catalyzed asymmetric synthesis, and is used in catalyzing an allylic sulfonylation reaction with a cobalt catalyst, and shows high reaction activity and high stereoselectivity.

The invention discloses a synthesis method of 5-(1H-pyrrole-1-yl)-2-mercaptobenzimidazole, which comprises the following steps: carrying out cyclization condensation reaction on o-phenylenediamine and thiourea in an acidic environment provided by hydrochloric acid to obtain 2-mercaptobenzimidazole; the preparation method comprises the following steps: carrying out nitration reaction on 2-mercaptobenzimidazole, sulfuric acid and nitric acid to obtain 2-mercapto-5-nitrobenzimidazole; the preparation method comprises the following steps: carrying out nitro reduction reaction on 2-sulfydryl-5-nitrobenzimidazole and hydrogen under the catalysis of nickel to obtain 5-amino-2-sulfydryl benzimidazole; the preparation method comprises the following steps: carrying out an N-alkylation reaction on 5-amino-2-mercapto benzimidazole and tetrahydro-2, 5-dimethoxyfuran under the catalysis of copper chloride to generate 5-(1H-pyrrole-1-yl)-2-mercapto benzimidazole, and carrying out a reaction on the 5-amino-2-mercapto benzimidazole and tetrahydro-2, 5-dimethoxyfuran to generate the 5-(1H-pyrrole-1-yl)-2-mercapto benzimidazole. The method disclosed by the invention has the outstanding advantages of mild and easily-controlled conditions, simple and convenient post-treatment, high yield, economy, environmental protection, suitability for large-scale production and the like, conforms to the green chemical development concept, and has important application value.

This application relates to a UV-3 ultraviolet absorber and its preparation method, belonging to the field of chemical synthesis technology. The preparation method employs a one-pot process, in which benzocaine reacts with triethyl orthoformate in xylene solvent. This step utilizes reactive distillation coupling control, continuously removing the generated alcohol distillate through a distillation separation device to promote reaction equilibrium shift, obtaining a xylene solution of the intermediate NET. Subsequently, the solution is heated to a reaction temperature of 135–145°C, and benzyl chloride is added dropwise for N-alkylation, while a tail gas absorption device absorbs byproduct gases. The reaction slurry is then cooled for crystallization, solid-liquid separation, and drying to obtain the UV-3 product. This invention simplifies the production process through a one-pot process, avoids the use of toxic DMF solvent, and solves the technical problem of raw material residues leading to subsequent side reactions in the one-pot process through reactive distillation coupling control, resulting in a final product with high purity and high yield.

The invention relates to the technical field of compound synthesis, and discloses a preparation method of 1, 3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxy benzyl) benzene. The preparation method comprises the following steps: under the action of a catalyst, carrying out Friedel-Crafts alkylation reaction on 3, 5-di-tert-butyl-4-hydroxy benzyl methyl ether and mesitylene, so as to generate 1, 3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxy benzyl) benzene); the catalyst comprises a modified molecular sieve HZSM-5 and double active components loaded on the modified molecular sieve, the double metals are Ce and La, the double active components comprise a Lewis acid active component FeCl3 or SnCl4 and a metal oxide auxiliary agent, and the metal oxide auxiliary agent is selected from one or more of MgO or ZnO. The catalyst provided by the invention is used for catalytically synthesizing 1, 3, 5-trimethyl-2, 4, 6-tri (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene, the product selectivity is high, the catalyst stability is strong, the catalyst can be efficiently and repeatedly utilized, and the catalytic reaction condition is mild.

The application provides a hybrid vehicle engine lubricating oil composition and a preparation method thereof.The hybrid vehicle engine lubricating oil composition comprises the following components: (A) a benzotriazole derivative; (B) a composite antioxidant comprising an alkylated diphenylamine antioxidant and a sulfide phenolic antioxidant; (C) a polyisobutylene succinimide ashless dispersant; (D) a sulfonate and / or a sulfated alkyl phenate; (E) a zinc dialkyldithiophosphate; (F) a composite friction modifier comprising an oil-soluble organic molybdenum friction modifier and an ashless friction modifier; (G) a phosphite type extreme pressure antiwear agent; and (H) a major amount of a lubricating oil base oil; wherein the structure of the benzotriazole derivative is shown in formula (I): wherein the definitions of the groups are shown in the specification.The hybrid vehicle engine lubricating oil composition has excellent antioxidant performance, corrosion resistance and rust resistance, and good emulsion retention performance and wear resistance.

The invention provides a wheat gliadin detection method, and belongs to the technical field of biology. The detection method comprises the following steps: mixing a sample to be detected with an ethanol solution to obtain a mixture; performing water bath on the mixture to obtain a mixed extract; centrifuging the mixed extract to obtain a supernatant; adding a reductive alkylation reagent into the supernate to obtain a reaction product; adding alkaline trypsin into the reaction product to carry out enzymolysis reaction to obtain an enzymolysis product; a first characteristic peptide fragment and a second characteristic peptide fragment as shown in SEQ ID NO: 1 in the sequence table are respectively used as markers, and the wheat gliadin is measured by the enzymolysis product through ultra-high performance liquid chromatography-tandem mass spectrometry by utilizing the markers. The method is simple in process and capable of efficiently detecting the wheat gliadin.

A method of selectively producing oligomers can include contacting at least one antifouling agent with a first amount of at least one aluminum alkyl compound to form at least one antifouling compound comprising the following structure or dimer form thereof: (I); and adding the at least one antifouling compound, an additional amount of the at least one aluminum alkyl compound, the at least one titanate compound, and ethylene to a jet loop reactor to oligomerize the ethylene to produce one or more of 1-butene, 1-hexene, or 1-octene. (I)

The application belongs to the technical field of optical materials, and particularly discloses a synthesis method of core-shell quantum dots based on surface activation, which comprises the following steps: S1, preparing a quantum dot core; S2, degassing reaction is carried out on zinc precursor, octadecene and oleylamine in proportion, then the quantum dot core obtained in S1 is injected, a metal alkyl compound is added, and the temperature is increased to 230-250 DEG C; S3, the shell precursor is injected for 3-4 times, the temperature is increased at the same time, the inner shell is grown, zinc stearate and TOP-S are injected again, the ZnS shell is grown, and the InP core-shell quantum dots with regular morphology are obtained. The synthesis method of core-shell quantum dots based on surface activation is adopted, the quantum dots with controllable morphology and size distribution are obtained, the method is suitable for industrial production, and has wide applicability.

The invention relates to the field of compound preparation, in particular to a high-efficiency dialkylation method of salicylic acid compounds, which is characterized in that salicylic acid and derivatives thereof are used as raw materials, and a dialkylation product of salicylic acid is efficiently prepared in one step through the steps of preparing multiple sodium salts, removing water, esterifying and the like. The method is simple to operate, high in atom economy, high in product purity and free of wastewater discharge.

The present application relates to the technical field of petroleum chemical industry, disclose a kind of method for improving the yield of toluene and xylene of reforming product oil, the system for improving the yield of toluene and xylene of reforming product oil.A kind of method for improving the yield of toluene and xylene of reforming product oil, the method comprises: under the alkylation reaction condition, in the presence of alkylation catalyst, C6-C7 fraction in reforming product oil is contacted with benzene and optionally hydrogen gas to carry out alkylation reaction;Wherein, alkylation catalyst includes MFI type zeolite, binder and optionally metal component, optionally metal functional adjuvant component.The method for improving the yield of toluene and xylene of reforming product oil has the advantages that toluene and xylene yield is high, and the effective separation of aromatic hydrocarbon and non-aromatic hydrocarbon under the condition of no extraction can be realized.

A process for the preparation of a compound of the sterically hindered alkoxyamine class is described, the process comprises the step of alkylating a sterically hindered hydroxylamine compound to a corresponding sterically hindered alkoxyamine by reacting said sterically hindered nitroxyl compound with a compound capable of producing a carbon-central alkyl radical, typically a territorial or secondary alkyl radical, the compounds capable of generating carbon-center alkyl radicals are selected from thermal radical initiators that form radical species in the temperature range of 40 DEG C to 200 DEG C, and from photoinitiators that undergo light excitation when irradiated with UV light or visible light in the range of 180 to 700 nm, in particular UV light in the range of 180 to 380 nm, the compounds capable of generating carbon center alkyl radicals are typically selected from the class of organic peroxides, azo compounds, benzoyl derivatives, benzophenone derivatives, thioxanthone derivatives, benzoin derivatives, benzoyl phosphine oxide derivatives, and the like. The invention relates to a peroxide, for example, selected from the group consisting of diacyl peroxides of formula (A), peracid esters of this formula (A), and oxalic acid peracid esters of formula (D) R-CO-O-O-Z-R (A), r-Z ''-X-CO-CO-O-O-Z''-R (D) wherein each R independently represents a primary or secondary alkyl or cycloalkyl group, preferably comprising from 1 to 15 carbon atoms, and X is oxygen-O-or peroxy-O-O-, Z represents CO or an alkylene group bonded to a quaternary carbon atom, the quaternary carbon atom being an alkylene group of formula (C) R '-C-R' (C), wherein each R'is selected from alkyl groups having 1 to 15 carbon atoms, and Z "represents the alkylene group bonded to a quaternary carbon atom having the formula (C). The described process produces the corresponding O-alkylated derivatives of the sterically hindered hydroxylamines, typically compounds of the class referred to as N-O-alkyl HALS, with very high selectivity and conversion and without the need for the use of catalysts, in particular metal catalysts.

The invention provides a methylnaphthalene alkylation catalyst as well as a preparation method and application thereof. The methylnaphthalene alkylation catalyst is obtained by carrying out variable-pressure hydrothermal aging and acid pickling on an HMCM-22 molecular sieve; the external specific surface area of the methylnaphthalene alkylation catalyst is 100-140 m < 2 > / g, and the mesoporous volume is 0.8-1.5 cm < 3 > / g; the strong acid center at the temperature of 370-485 DEG C accounts for 80-90% of the weak acid center at the temperature of 200-350 DEG C; the total acid amount is 0.5 to 1.9 [mu] mol / NH3. The methylnaphthalene alkylation catalyst has good stability on the premise of ensuring high activity, is used for catalyzing alkylation of 2-methylnaphthalene and methanol to prepare 2, 6-dimethylnaphthalene, and has good selectivity on DMN and 2, 6-DMN.

The invention belongs to the technical field of adsorption material preparation, and relates to an anion defect type prussian blue analogue and a preparation method and application thereof in cesium adsorption.The preparation method comprises the steps that imidazole and halogenated alkane are subjected to an alkylation reaction and anion exchange to prepare ionic liquid, and after water is added, an ionic liquid-water mixed solvent is obtained; the method comprises the following steps: respectively dissolving transition metal nitrate and potassium ferrocyanide into an ionic liquid-water mixed solvent, dropwise adding a potassium ferrocyanide solution into a transition metal nitrate solution, and stirring to obtain a mixed solution; and carrying out hydrothermal reaction on the mixed solution, cooling to room temperature, washing the material, and drying to obtain the anion defect type prussian blue analogue. The cesium ion adsorption capacity and the cesium ion cycling stability are improved by precisely regulating and controlling anion defects in the Prussian blue analogue, and the cesium ion adsorption material has good ion interference resistance in a complex water environment and shows excellent adsorption selectivity and a wide application range.

This invention relates to the field of alkylnaphthalene preparation and discloses a method for producing long-chain alkylnaphthalene. The method includes: an alkylation reaction, regeneration of the deactivated catalyst, and recycling of the regenerated catalyst. The alkylation reaction includes: alkylation of a long-chain olefin and naphthalene in the presence of a catalyst and a first solvent. The catalyst includes a molecular sieve, a support, copper, and phosphorus. The catalyst contains at least 35% medium-strong acid, and the acid content is characterized using NH3-TPD (NH3-programmed temperature desorption), where 250℃-450℃ represents a medium-strong acid. The regeneration of the deactivated catalyst includes: sequentially performing a first-stage solvent regeneration, a second-stage hydrogen regeneration, and a third-stage solvent hydrogen regeneration. This method enables complete regeneration of the deactivated catalyst, improves catalyst stability, and achieves long-cycle production of long-chain alkylnaphthalene.

The application discloses a preparation method of a diphenylmethyl quinoxaline ketone derivative, and belongs to the technical field of biological medicines. The structure of the diphenylmethyl quinoxaline ketone derivative is shown in the specification. The application adopts a cross dehydrogenative coupling strategy, realizes quinoxaline ketone 3-alkylation through direct activation of an alkane and accompanying hydrogen atom transfer, and has the advantages of mild reaction conditions, cheap and easily available reagents, and higher efficiency and environmental friendliness. The diphenylmethyl quinoxaline ketone derivative has high-efficiency and broad-spectrum antifungal activity, shows inhibitory effects on a plurality of common plant pathogenic fungi, and can be developed into a product for treating plant fungal infections.

The invention relates to a curable composition comprising (I) at least one silane-modified polymer and / or at least one organopolysiloxane polymer; (II) at least one aminosilane or aminosilane oligomer; (III) at least one guanidine catalyst of Formula (G1) wherein R1 is hydrogen; R2 is selected from the group consisting of optionally substituted alkyls comprising at least 3 carbon atoms, optionally substituted cycloalkyls comprising at least 3 carbon atoms, and optionally substituted C6-C18 aryl; preferably from the group consisting of optionally substituted C3-C8 alkyls, optionally substituted C3-C10 cycloalkyls, and optionally substituted C6-C18 aryl; more preferably R2 is selected from C3-C10 cycloalkyls; R3 is selected from optionally substituted alkyls comprising at least 2 carbon atoms; preferably from optionally substituted C2-C8 alkyls; R4 is selected from optionally substituted alkyls comprising at least 2 carbon atoms; preferably from optionally substituted C2-C8 alkyls; wherein R3 and R4 can be linked so as to form a 3-, 4-, 5-, 6- or 7-membered aliphatic ring, preferably a 5- or 6-membered aliphatic ring, optionally substituted with one or more substituents; and R5 is selected from the group consisting of optionally substituted alkyls comprising at least 3 carbon atoms, optionally substituted cycloalkyls comprising at least 3 carbon atoms, and optionally substituted C6-C18 aryl; preferably from the group consisting of optionally substituted C3-C8 alkyls, optionally substituted C3-C10 cycloalkyls, and optionally substituted C6-C18 aryl; more preferably R5 is selected from C3-C10 cycloalkyls; (IV) optionally, surface treated calcium carbonate; (V) optionally, surface treated silica; and (VI) optionally, at least one plasticizer. The invention also relates to adhesive, sealant, and / or coating materials comprising said composition, the use of at least one guanidine catalyst of Formula (G1) and the use of said composition.

Diesel fuel and / or fuel blending compositions are provided that have improved emissions profiles by blending a narrow boiling range fraction of an alkylate product into the diesel fuel and / or fuel blending composition. The narrow boiling range alkylate fraction that is blended into the product has a reduced or minimized content of both light naphtha components and diesel boiling range components. As a result, the narrow boiling range alkylate fraction is a fraction that contains a substantial portion of C5 to C12 branched paraffin while generally having little or no aromatics content of aromatics as well as having a reduced or minimized sulfur content. Blending of the narrow boiling range alkylate fraction in diesel results in lower T10 values, lower T90 values, lower aromatic content, higher heating value, and a higher molar ratio of hydrogen to carbon as compared to conventional diesel.