134 results about "Nitroalkane" patented technology

The method of at least one thermally expandable graphite intercalation compound, containing A) a least one metal halide of at least one of the elements Fe, Al, Sb, Zn, Y, Cr and Ni and B) at least one nitroalkane of the general formula CH3(CH2)nNO2, in which n is a whole number from 0 to 10, as well as its structural isomers or mixtures, as intumescing, fire-protection additive in polymer matrices for producing intumescing fire-protective seals for through holes, wall bushings and other openings in walls, floors and/or ceilings of buildings, as well as a method for preparing the thermally expandable graphite-intercalation compounds used.

The present invention relates to photoelectric conversion devices, characterized by using oxide semiconductor particles sensitized with a methine dye represented by the Formula (1):

(in the Formula (1), m represents 1 to 4; n1 represents 1 to 7; p1 represents 1 to 4; X1 represents an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue, a cyano group, a phosphoric acid group, a sulfonic acid group, or a carboxyl group, a carbonamide group, and the like; L1 represents an optionally substituted aromatic residue and the like; A1 and A2 each independently represent an optionally substituted aromatic residue, a hydroxyl group, a phosphoric acid group, a cyano group, a hydrogen atom, a halogen atom and the like; the ring a1 has 1 or a plurality of halogen atoms, amide groups, hydroxyl groups, cyano groups, nitro groups, alkoxy groups, acyl groups and the like.), and solar cells made by using the same. The devices and the cells are characterized by relatively low cost, high stability, and high photoelectric conversion efficiency.

A process for forming neutral late transition metal chelates useful as polymerization catalysts comprising contacting a bidentate ligand forming compound that is free of electron-withdrawing groups with a di(tertiary amine) late transition metal reagent in the presence of an inert liquid, an olefinic monomer or a polar liquid selected from nitrites, ethers, aromatic heterocyclic amines, alcohols, nitroalkanes, nitroaromatics or mixtures thereof. The process provides a solid product or a solution of a storage stable transition metal bidentate ligand containing catalyst product which remains active for an extended storage period. Alternately, the present process can be conducted in situ in a polymerization zone of olefinic polymerization.

The invention pertains to the technical field of medicaments for preventing platelet aggregation and provides an oxime derivative which contains thienopyridine and has a structure as shown in the general formula (I), and pharmaceutically acceptable salt thereof, wherein, m equals to 1 and 2 and n equals to 0 and 1; R <1 >, R <2> and R <3> collectively or individually refer to hydrogen, C1-C6 straight-chain or branched-chain alkyl, C3-C6 naphthenic base, halogen, hydroxyl, carboxyl, amino, amido, cyano, nitryl, C1-C4 alkoxy, substituted phenyl and substituted heterocyclic radical; and R<4> refers to hydrogen, C1-C4 straight-chain or branched-chain alkyl as defined in the Instruction in details. In addition, the invention also relates to a preparation method of the compounds and discloses medicament combinations of which the compound or the pharmaceutically acceptable salt of the compound is taken as active ingredient and the application of such medicament combinations as drugs for preventing platelet aggregation.

Disclosed are a process and apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by using a dividing wall column.

Provided is a process for making an aminoalcohol compound. The process comprises using an excess amount of aliphatic aldehyde in a condensation step between the aldehyde and a nitroalkane, and using an aldehyde scavenger in a reductive hydrogenation step. The process yields aminoalcohol compounds exhibiting reduced color and odor.

A chiral tetraaminophosphonium salt represented by formula (1) and a method for producing chiral β-nitroalcohol comprising reacting an aldehyde or a ketone and a nitroalkane in the presence of the chiral tetraaminophosphonium salt represented by formula (1) and a base, or in the presence of a conjugated base of the chiral tetraaminophosphonium salt represented by formula (1):

wherein R¹ to R⁴ are independently a hydrogen atom or a monovalent hydrocarbon group; and, R¹ and R² are different groups or R³ and R⁴ are different groups.

A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below,

Disclosed is an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. The apparatus may be designed such that it can synthesize more than one nitroalkane using the same equipment.

The invention provides a green process of a circular economy industry chain for co-production of industrial sulfanilamide and hydroxylamine products and organic acid downstream products. The process comprises the following steps that hydrochloric acid mixed acid is separated and purified to obtain sulfuric acid and co-produced hydrochloric acid, and the obtained sulfuric acid enters a sulfuric acid mixed acid treatment route; partial co-produced hydrochloric acid and nitroalkane are subjected to a hydrolysis reaction to obtain organic mixed acid and co-produced hydroxylamine hydrochloride, and the organic mixed acid is separated and purified to obtain co-produced organic acid; the sulfuric acid mixed acid is separated and purified to obtain organic matters and co-produced sulfuric acid; the organic matters are subjected to reactive crystallization to co-produce p-aminobenzene sulfonic acid; and partial co-production sulfuric acid and nitroalkane are subjected to a hydrolysis reaction to obtain a co-production hydroxylamine sulfate product and organic mixed acid, and the organic mixed acid is separated to obtain co-produced organic acid. According to the process, a green circular economy industrial chain of industrial sulfanilamide is realized, and meanwhile, a green circular economy industrial chain of hydroxylamine products and organic acid downstream products can be co-produced.

The invention relates to a novel synthetic method of NH-1,2,3-triazole bipyridine compounds. According to the methods, pyridinecarboxaldehyde, nitroalkane, sodium azide and a catalyst are sequentially added to a reaction solvent in a reaction container, the materials are stirred in the air under a heating condition and react, and the NH-1,2,3-triazole bipyridine compounds are prepared. The method has the benefits as follows: cheap and available AlCl3 is taken as the catalyst, aromatic aldehyde, nitroalkane and sodium azide have a one-pot reaction, the reaction conditions are mild, the yield is high, the raw materials are available, and the NH-1,2,3-triazole bipyridine compounds are synthesized conveniently and effectively.

The invention discloses a novel fluororubber vulcanizer which comprises at least one phenolic hydroxyl group and one amino group in the molecular structure. The novel fluororubber vulcanizer can be prepared from the following two preparation methods: one method comprises a step of performing catalytic hydrogenation reduction on a phenolic hydroxyl group and nitroparaffin substituted aromatic hydrocarbon, and the other method comprises a step of reacting phenolic hydroxyl substituted aromatic hydrocarbon carboxylic acid and a multi-amino compound. The novel fluororubber vulcanizer disclosed by the invention is simple in preparation method, gentle in reaction condition and relatively low in raw material cost; when being added with an essential quaternary phosphorus salt accelerant, the novel fluororubber vulcanizer can be used as a special vulcanizer, prepared fluororubber is reliable in heat tearing property, high in strength, good in permanent compression deformation property and stable in heat resistance, a fluororubber composition is relative good in flowability and relatively excellent in processing property, and problems such as scorching of a phenol vulcanization system and poor fluororubber property of an amino vulcanization system can be solved.

The invention relates to a method for producing nitroalkane and co-producing ketoxime. The method comprises the following steps: in the presence of a molecular sieve catalyst of ketone ammoxidation, taking ketone, ammonia and hydrogen peroxide as reaction raw materials to generate nitroalkane and co-generate ketoxime. The method disclosed by the invention is mild in reaction conditions, safe and environment-friendly, simple in separation and high in the purity of the product, and the yield of the nitroalkane in the product can be adjusted, so as to obtain the ratio of the required nitroalkaneto ketoxime, so that the method for producing nitroalkane and co-producing ketoxime enhances the production elasticity of the nitroalkane, and the economic benefits of the whole process are improved.

The invention relates to a 3-cyano-6-cyclopropylpyridine type IDO1 inhibitor and application thereof. The 3-cyano-6-cyclopropylpyridine type IDO1 inhibitor is compound of general formula I or its pharmaceutically acceptable salt; n represents 1-4, R represents hydrogen, halogen, methyl group, C1-C4 alkoxy group, cyano group, nitro group, and C-C4 alkyl group. The 3-cyano-6-cyclopropylpyridine typeIDO1 inhibitor is novel in structure and high in activity, has low side effects and good drug metabolism, may act as an antitumor candidate compound. These compounds are used alone or used with otherantitumor drugs, so that efficacy of existing antitumor drugs is improved and their dosage and toxicity are decreased.

The invention belongs to the field of organic synthesis, and provides a poly-substituted tetrahydrofuran and tetrahydropyrane diene compound as shown in a formula I. In the formula I, R1 is selected from aryl or hetero-aryl; R2 and R3 are selected from hydrogen or C1-C6 alkyl; R4 and R5 are each independently selected from aryl, hetero-aryl, C1-C6 alkyl or hydrogen; and R6 and R7 are selected fromcyano, nitro, C1-C6 alkyl, an ester group or hydrogen. A target product is synthesized through two steps of reaction, and the method comprises the following steps: (1) reacting alpha-alkenyl lactonewith a nucleophilic reagent (nitrile, nitroalkane or ester and the like) for 1-48 hours at -78 to 60 DEG C under the action of alkali to obtain a hemiacetal intermediate; and (2) dehydrating the hemiacetal intermediate under the catalytic action of Lewis acid or Bronsted acid to form the compound shown in the formula I. The method is simple in process equipment, easy to operate, environment-friendly, low in cost and good in yield.

Pyrimidine derivatives represented by general formula (I) shown in the description, wherein R1 represents an H, alkyl group, cycloalkyl group, alkenyl group, alkynyl group, haloalkyl group, halocycloalkyl group, haloalkenyl group, haloalkynyl group, alkoxyalkyl group, etc. A represents -O-, -S-, -SO-, or -SO2-; R2 represents a halogen atom, hydroxyl group, cyano group, nitro group, alkyl group, alkenyl group, alkynyl group, cycloalkyl group, haloalkyl group, haloalkenyl group, haloalkynyl group, halocycloalkyl group, etc. m represents an integer 0 or 1; n represents an integer 0-4; and X represents a nitrogen atom or -CH-. and salts thereof have excellent insecticidal and miticidal activity and are effective as the active ingredient in horticultural insecticides.