49 results about "Cyclopropene" patented technology

The invention discloses a preparation method of a slow-release solid preservative, and relates to the field of fruit preservation, and the preservative is prepared from the following raw materials in parts by weight: 5-8 parts of chitosan, 2-4 parts of carrageenan, 1-5 parts of sodium citrate, 2-3 parts of silicon dioxide, 3-4 parts of 1-methylcyclopropene, 2-3 parts of chlorine dioxide, 1-2 parts of water and 3-6 parts of baking soda. The preservation method of the slow-release solid preservative comprises the following steps: loading the solid preservative in a non-woven bag, placing the non-woven bag in a foam box or a packaging bag loaded with fruits, and sealing the foam box or the packaging bag. The baking soda in the preservative releases carbon dioxide, 1-methylcyclopropene and chlorine dioxide, and meanwhile, the physiological metabolism of the fruits and the generation of ethylene are effectively inhibited, and pathogenic bacteria are killed, so that the shelf life of the fruits is prolonged.

The application relates to the technical field of oil refining, in particular to a processing device for removing cyclopropene fatty acids in cottonseed oil, which comprises a shell and a shell cover, the shell cover is fixedly installed on the top of the shell, a mixing assembly is movably installed in the shell, the mixing assembly comprises a screening frame, a sliding plate and two connecting pipes, one end of the connecting pipe is fixedly connected with the bottom of the shell and communicates with the bottom of the shell. The mixing liquid is sprayed through the corresponding nozzles, so that the mixing liquid collides with each other to be refined, the mixing efficiency of the mixing liquid is improved, the mixing liquid is separated through the sliding plate and the screening frame, the screening frame scrapes off and screens the soap nuts and impurities in the mixing liquid, the sliding plate pushes the mixing liquid upwards, the mixing effect of the mixing liquid is improved, the air in the shell is extruded, so that the air cleans the soap nuts and impurities in the connecting pipe, the diffused mixing liquid is impacted and diffused by the rotating impeller, so that the mixing liquid is further refined and the mixing efficiency is improved, and the impeller scrapes off the soap nuts and impurities above the screen through rotation.

The invention discloses a method for preparing fused ring arylamine from isonitrile and cyclopropene. The reaction formula is as follows: # imgabs0 #.

The present invention discloses an alkali-regulated high-temperature-resistant modified cyclopropene, a fresh-keeping varnish, and a fresh-keeping packaging product. The modified cyclopropene is in a solid state and includes an active ingredient, a cyclopropene compound, a curing inclusion agent, and a high-temperature-resistant modifier; the high-temperature-resistant modifier is an organosilicon compound. The present application adopts an organosilicon compound and a curing inclusion agent to modify the cyclopropene compound, which can significantly enhance its thermal stability and antioxidant stability, and can meet the high-temperature condition of 180°C required for corrugated cardboard production; and has an alkali-regulated release characteristic, can be stably stored in a neutral system of pH 6.5 to 8.5, and is activated to release cyclopropene gas in an alkaline system of pH>8.5. Therefore, the modified MCP and other products prepared from the modified MCP, such as fresh-keeping varnish and fresh-keeping cartons, can be stored for a long time under conventional conditions.

The invention relates to fluorine-containing isoxazolidine-5-ketone as well as a synthesis method and anti-tumor application thereof. According to the synthesis method, gem-difluorocycloacrylimide and nitrone are taken as substrates, Ni (ClO4) 2.6 H2O is taken as a catalyst, (+ / -)-2, 2 '-(propane-2, 2-diyl) bis (4-phenyl-4, 5-dihydrooxazole) is taken as a ligand (L) in an organic solvent, cycloaddition isomerization reaction is carried out at about 30 DEG C, and the fluorine-containing isoxazolidine-5-ketone compound is obtained. And the fluorine-containing isoxazolidine-5-ketone is obtained through preparation. The method is mild in reaction condition, capable of being well compatible with various functional groups and high in yield, and the product further has certain biological activity and can inhibit proliferation of cancer cells. The invention discloses the realization of the cycloisomerization reaction of the gem-difluorocyclopropene and the nitrone for the first time, provides a new idea for the synthesis of the fluorine-containing isoxazolidine-5-ketone and the derivative thereof, and has a good application prospect in the fields of medicines and synthesis.

A process, apparatus, and cyclopropenimine (CPI) material for generating metal carbonates are disclosed. Generating the metal carbonates comprises reacting carbon dioxide (CO2) with CPI. Generating the metal carbonates also comprises forming a reaction mixture comprising water, metal cations, and a product of the reacting.

The present invention relates to a composition comprising certain triglycerides having a low content of cyclopropene-based fatty acid (CPFA) acyl groups and tocopherols, as well as the use of such a composition, especially in cosmetic applications, and a method of treating baobab oil.

The invention relates to the technical field of probe molecules and protein post-translational modification, in particular to a methylcyclopropene benzoic acid probe as well as a preparation method and application thereof. The methylcyclopropene benzoic acid probe is any one of a compound 4, a compound 5 and a compound 6; wherein R1 is-COOCH3 which is subjected to ortho-position substitution, meta-position substitution or para-position substitution; r < 2 > is meta-substituted or para-substituted-COOH; and R3 is-COOCH2OCOCH3 which is subjected to meta-position substitution or para-position substitution. According to the invention, methylcyclopropene in the methylcyclopropene benzoic acid probe is used as a dienophile part and can form a unique probe pair with the S-tetrazine coupled diene probe, so that efficient and accurate labeling of benzoylation protein post-translational modification is realized; the problems of long time consumption, radioactive hazard, low enrichment efficiency, poor specificity and background fluorescence interference in PTMs detection are solved. # imgabs0 #

The invention relates to the technical field of suspending agents, and discloses a water suspending agent and a use method thereof, the water suspending agent comprises the following components by weight: 27.8-45% of a hydrophobically modified cyclopropene molecule encapsulating agent complex; 8%-20% of at least one potassium salt, sodium salt or magnesium salt which is soluble in water; and 27%-50% of water. The composition can also comprise an anti-freezing agent or a thickening agent and other assistants. According to the technical scheme, a cyclopropene molecule encapsulating agent complex is subjected to hydrophobic modification and compounded in a high-concentration saline water phase. And the hydrophobic modified layer and the high-salt environment have a synergistic effect, so that the rapid dissolution of the complex after meeting water is effectively inhibited, and the slow release of 1-methylcyclopropene is realized. The water suspending agent is suitable for being mixed with water to be sprayed 7-21 days before fruit harvesting, can effectively prevent fruit dropping in the harvesting period and maintain fruit hardness, and solves the technical problem that the 1-methylcyclopropene complex is difficult to apply in open fields due to quick release.

The invention provides diazabicyclo [3.1. 0] hexane derivatives as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. The structural formula of the derivative is shown as a formula I. According to the derivative, a thermally driven [3 + 2] dipolar cycloaddition reaction is carried out on a cyclopropene derivative and N, N-cyclo-aza-methylenimine ylide, and the product has good diastereoselectivity. The method has the advantages of mild reaction conditions, high conversion rate, good diastereoselectivity and wide substrate universality. In-vitro anti-tumor activity screening on the compound library provided by the reaction shows that some analogues show relatively remarkable proliferation inhibition on cell strains of leukemia HL-60, lung cancer A549, liver cancer HepG2, breast cancer MDA-MB-231 and colon cancer SW480, and particularly, the HL-60 cell strains are most sensitive to the compounds.

The application belongs to the technical field of medical apparatus and instruments, and discloses a handle-adjustable cyclopropene injector, which comprises a scale syringe, a piston handle is slidably connected to the inner wall of the scale syringe, a scale value is arranged on the handle body of the piston handle, and a handle metering adjusting part is arranged between the scale syringe and the piston handle; through cooperation of the cam plate, the cam groove and the torsional spring of the handle metering adjusting part, the piston handle is precisely positioned at multiple intervals, the arc-shaped abutment is used to limit the pushing of the scale syringe, so that the cyclopropene amount is prevented from being excessively or insufficiently pushed, the scale of the piston handle can be real-timely marked when the arc-shaped abutment is pulled up, the adjustment is efficient, the sleeve can be separated from the cam groove limit by only 90-degree torsion, the operation is flexible, the clamping limit structure clamps the knuckles of medical staff through the rubber bumps, the natural rubber material increases the friction, the hands are prevented from slipping when the piston is pushed, and the risk of medical accidents is reduced.

The application belongs to the technical field of pesticide preparation, and particularly relates to 1-methylcyclopropene oil suspending agent and a preparation method thereof. The cyclodextrin inclusion compound of 1-methylcyclopropene is dispersed in a non-water medium, so that the rapid release of the cyclodextrin inclusion compound of 1-methylcyclopropene caused by water is avoided, the stability of the 1-methylcyclopropene oil suspending agent is improved, and meanwhile, the phosphatidylcholine is used in combination with an emulsifier, a thickening agent and other auxiliaries, so that the problem of high viscosity caused by the dispersion of cyclodextrin in an oil medium is solved, the appropriate viscosity of the 1-methylcyclopropene oil suspending agent is ensured, the use and storage are facilitated, the environment is friendly, and the 1-methylcyclopropene oil suspending agent can be used in open space and closed space at the same time.

The present disclosure relates to organic electrolyte solutions including organic electrolytes (e.g., aromatic imides, ferrocenes, spiro fused compounds, or cyclopropenium compounds), and redox flow batteries and systems including the same.

The present disclosure relates to compositions and methods useful for the functionalization of surfaces in the absence of a metal catalyst. The compositions include compounds of formula (I), which react with strained alkene-containing compounds, before or after molecular assembly catalyzed by tyrosinase, to afford cycloadducts. The strained alkene-containing compound may further comprise any molecule of interest, including small molecules and macromolecules, thereby enabling surface functionalization. In certain embodiments, the strained alkene-containing molecule comprises a moiety selected from the group consisting of a trans-cyclooctene (TCO), cyclopropene, cyclobutene, and norbornene.

The invention relates to the non-therapeutic cosmetic use of a composition comprising at least one cyclopropene fatty acid for inhibiting the activity of stearoyl-CoA desaturase, and acting as a depigmenting, lightening and / or whitening agent for human skin, mucous membranes, body hair and / or head hair and / or as an agent for removing pigment spots from human skin. The invention also relates to a composition for use in the treatment of hypermelanoses. According to one embodiment, said at least one cyclopropene fatty acid is selected from sterculic acid and / or malvalic acid.

Described are monomers having nitrogen atoms that can be protonated at relatively low pH values ​​(e.g., below pH 9.5 or below pH 9), polymers comprising monomer units derived from these monomers, anion exchange separation articles having the polymers grafted to a porous substrate, and methods of using the anion exchange separation articles to separate mixtures of materials having different ionic contents. Advantageously, the anion exchange separation articles can be used to separate biological materials that cannot be subjected to high pH conditions (e.g., above 9 or 9.5) and / or high ionic strength conditions (e.g., above 0.5 M or 1 M). JPEG2026501205000051.jpg22128

The present disclosure provides methods of treating a mixed type of produce with a cyclopropene, as well as methods of treating plant or plant parts in an environment comprising exogenous ethylene methods with a cyclopropene. The methods described herein exhibit desirable properties and provide related advantages to benefit the quality and extend the freshness of produce and also reduce waste associated with the over-ripening of produce.

The invention discloses a device for removing cyclopropene fatty acid in cottonseed protein, which comprises a turntable, the top of the turntable is fixedly connected with a plurality of heating barrels, the device for removing cyclopropene fatty acid in cottonseed protein further comprises a feeding hopper, and the feeding hopper is arranged above one heating barrel; the driving rod is arranged on the lower portion in the feeding hopper. The invention relates to the technical field of removal of cyclopropene fatty acid in cottonseed protein, and the removal device for cyclopropene fatty acid in cottonseed protein realizes an efficient and energy-saving industrial removal device through multi-component collaborative design, ensures that each part of raw material can be fully and consistently cooked, and improves the removal efficiency of cyclopropene fatty acid in cottonseed protein. The phenomenon of incomplete removal caused by local overheating or insufficient heating is reduced, good sealing performance is still maintained in the rotating process of the rotating disc, the running number can be flexibly adjusted according to actual production requirements through the layout of the multiple heating barrels, excellent flexibility and adaptability are shown, and powerful support is provided for enterprise production and operation.

A process, apparatus, and material for generating polymers are disclosed. Generating the polymers comprises reacting carbon dioxide (CO2) with a cyclopropenimine (CPI). Generating the polymers further comprises reacting monomers with a product of the reaction between the CPI and the CO2.

This application discloses a cyclic olefin ring-opening alternating copolymer, its preparation method, and its applications. The cyclic olefin ring-opening alternating copolymer of this application is synthesized by alternating 1:1 ring-opening substitutions of any two cyclic olefin monomers selected from substituted or unsubstituted cyclopropylene, substituted or unsubstituted cyclobutene, and substituted or unsubstituted norbornene. The cyclic olefin ring-opening alternating copolymer of this application possesses a precise 1:1 alternating insertion copolymer structure with high alternation degree, high molecular weight, narrow distribution, and excellent thermodynamic properties, laying the foundation for the preparation of high-performance elastomers, optical films, and biomedical materials.

The invention relates to an antibacterial high-strength organic composite material and a preparation method thereof. The antibacterial high-strength organic composite material comprises the following components: polypropylene, polyvinyl alcohol, modified titanium dioxide, epoxidized soybean oil, carboxymethyl cellulose, a filler and an auxiliary agent. Wherein the modified titanium dioxide is obtained by firstly carrying out blending reaction on hydroxylated titanium dioxide and arachidonic acid and then carrying out blending reaction with styrene, butyl acrylate and methacrylic acid tannic acid. A long alkyl chain, a benzene ring, acrylate and tannic acid are introduced into the modified titanium dioxide; wherein the long alkyl chain can improve the dispersibility and mechanical properties, the benzene ring can further improve the mechanical properties, the acrylate can improve the compatibility of the components, and the tannic acid can improve the structural stability; in addition, titanium dioxide has an antibacterial effect and can generate a synergistic effect with other components after being modified, so that the performance of the product is improved.

A process for the preparation of fused ring arylamines from isonitriles and cyclopropenes is disclosed, the reaction scheme being as follows:

The present invention relates to monomers of formula (I) having nitrogen atoms that can be protonated at relatively low pH values (e.g., less than pH 9.5 or less than pH 9), polymers containing monomer units derived from these monomers, anion exchange separation articles having the polymer grafted to a porous substrate, and methods of making the same. And a method for separating a mixture of materials having different ion contents using the anion separation article. Advantageously, the anion exchange separation article can be used to separate biological materials that are not subject to high pH conditions (e.g., greater than 9 or 9.5) and / or high ionic strength conditions (e.g., greater than 0.5 M or 1 M). # imgabs0 #

The invention relates to a packaging composition which is characterized in that the packaging composition comprises nitrogen-containing heterocyclic acrylate, a photocuring monomer and a photoinitiator, the structural general formula of the nitrogen-containing heterocyclic acrylate is as shown in formula (1): (1) wherein X is a substituent group with 6-30 carbon atoms, an aromatic substituent group without heteroatoms, or a substituent group containing nitrogen, sulfur or oxygen atoms; according to the nitrogen-containing heterocyclic acrylate monomer, nitrogen atoms of a pyridine ring serve as main capture sites of water molecules and metal ions, substituent groups containing additional heteroatoms (such as O, N and S) are introduced into specific positions of the pyridine ring to construct secondary capture sites, and the synergistic barrier effect of a packaging barrier film on the water molecules and the metal ions is achieved; therefore, the packaging performance of the packaging composition barrier film is remarkably improved, and the service life of a device is prolonged.

The present invention discloses a compound with type I reactive oxygen species generation performance, its synthesis method and application. The general structural formula of the compound is as follows: Using a five-membered heteroaromatic acrylonitrile as the backbone, an electron acceptor pyridinium salt and an electron donor substituted aniline are introduced. By shortening the distance between the electron donor and the electron acceptor, the molecular redox potential is adjusted, and an intramolecular D-π-A system is constructed to significantly reduce the energy level difference between the singlet state and the triplet state, and accelerate the ISC process, reducing the energy difference from the excited triplet state to the ground state to be less than the energy required to generate singlet oxygen, thereby improving the type I ROS generation performance of the photosensitizer. The process of generating reactive oxygen species by this compound has less dependence on oxygen, and the modification of functional groups increases its penetration ability into stubborn biofilms, and it has good biofilm clearance ability in anoxic environments, effectively solving the problems of high oxygen dependence and insufficient penetration existing in existing compounds during use.

The invention belongs to the technical field of organic synthetic chemistry, and particularly relates to a synthetic method of a dideuterated cyclopropane compound. In a nitrogen environment, a cyclopropene compound is taken as a raw material, potassium carbonate is added in a 450-465nm blue photoreactor under the condition that 2, 4, 5, 6-tetra (9-carbazolyl)-isophthalonitrile is taken as a catalyst, the mixture and deuterium water are subjected to a deuteration reaction, a reaction product is subjected to quenching, extraction, filtration and column chromatography, and the dideuterated cyclopropane compound can be obtained. The catalytic system comprises a catalyst, an alkaline substance and a solvent N-methyl pyrrolidone. According to the method, deuteration of the cyclopropene compound can be realized by using a relatively low catalyst dosage, the deuteration degree is high, the operation process and the separation process are simple, and the method has relatively good safety.

This invention relates to compositions and methods for improving recovery after traumatic or ischemic central nervous system injury, including the administration of compositions comprising cyclopropenzyme (AOS) or its functionally equivalent variants or derivatives.

The present invention relates to the non-therapeutic cosmetic use of a composition comprising at least one cyclopropenoid fatty acid for inhibiting the activity of stearoyl-CoA desaturase and for acting as depigmenting, lightening and / or whitening agent for human skin, mucous membranes, body hair and / or head hair and / or as an agent for removing pigment spots on human skin. The present invention also relates to a composition for the treatment of hyperpigmentation. According to one embodiment, the at least one cyclopropenoid fatty acid is chosen from malvalic acid and / or malvalonic acid.

A process, composition, and apparatus for carbon dioxide (CO2) conversion are disclosed. The CO2 conversion comprises reacting CO2 with a cyclopropenimine (CPI) to activate the CO2 and transferring the activated CO2 to generate a product of the transferring. The transferring also generates a conjugate acid of the CPI. The process further comprises regenerating the CPI from the conjugate acid.