15 results about "Cyclohexenone" patented technology

The invention belongs to the technical field of preparation of herbicides, and particularly relates to a preparation method of tralkoxydim. The preparation method comprises the following steps: carrying out ethylation reaction on 3-hydroxy-5-(2, 4, 6-trimethylphenyl)-2-propoximido-cyclohex-2-ene-1-ketone and halogenated ethane under an alkaline condition, so as to prepare tralkoxydim. According to the method, the use of ethoxyamine hydrochloride or ethoxyamine in the traditional process is innovatively avoided, the raw material cost is reduced, the ethylation reaction is carried out by using halogenated ethane, the reaction raw materials are cheap and easy to obtain, meanwhile, single sodium / potassium halide wastewater is produced, the wastewater treatment process is greatly simplified, meanwhile, the generation of carnallite wastewater and carnallite-containing solid waste is eliminated, and the method is suitable for industrial production. The method has the advantages of environmental protection, economy and simple process, and is suitable for industrial large-scale production.

The application belongs to the technical field of chemical synthesis, and particularly relates to a synthesis method of 2-aryl-2-cyclohexanedione enol ester compounds. The method uses a transition metal complex as a catalyst, and uses a phenyl boronic acid compound and an iodine onium compound as raw materials, first synthesizes a 3-hydroxy-2-aryl-2-cyclohexenone compound, and then synthesizes the 2-aryl-2-cyclohexanedione enol ester compound through acylation. The reaction condition is mild, no additional additives (such as alkali-sodium acetate, expensive silver salt-silver acetate, etc.) need to be added, the C-C bond can be efficiently and quickly constructed, the 2-aryl-2-cyclohexanedione cyclization derivative is obtained, the reaction operation is simple, the reaction time is short, the method has high efficiency and high safety, the substrate range is wide, the functional group tolerance is good, the method conforms to the concept of green chemistry and high atomic economy, and is very suitable for large-scale industrial production.

A first aspect of the invention relates to a mixture comprising 2,4- toluene diamine and 2,6-toluene diamine and comprising less than 10 weight-ppm of an amino methyl cyclohexenone compound of formula (I) based on the total weight of the mixture being 100 weight-%. In a second aspect, the invention is directed to a method for controlling a hydrogenation process for preparing toluene diamine (TDA) from dinitrotoluene (DNT), said TDA having a boiling temperature range BTRTDA with a lower boiling temperature limit value TTDA(L) and an upper boiling temperature limit value TTDA(U). A third aspect relates to a mixture comprising at least 2,4- toluene diamine and 2,6-toluene diamine obtained or obtainable from the method according to the second aspect. A fourth aspect of the invention is directed to a use of the mixture according to the first aspect of the invention or of the mixture of the third aspect of the invention for the preparation of toluene diisocyanate (TDI). In a fifth aspect, the invention relates to a process for preparing toluene diisocyanate (TDI) comprising: (I) Providing a mixture according to the first aspect of the invention or of the mixture of the third aspect of the invention; and (II) Phosgenation of the mixture provided in (I), thereby obtaining TDI.

This invention discloses a method for the catalytic hydrolysis of 3,3'-oxybis(cyclohexane-2-en-1-one) using carbon materials. Under the action of a bio-carbon-supported potassium-magnesium oxide catalyst rich in strongly basic sites, 3,3'-oxybis(cyclohexane-2-en-1-one) undergoes a hydrolysis reaction to produce 1,3-cyclohexanedione. The raw material 3,3'-oxybis(cyclohexane-2-en-1-one) is a byproduct of the resorcinol process for preparing 1,3-cyclohexanedione, and is inexpensive and readily available. The catalytic hydrolysis of 3,3'-oxybis(cyclohexane-2-en-1-one) to produce 1,3-cyclohexanedione achieves value-added processing of byproducts from the CHD industry, reduces solid waste generation, lowers the production cost of 1,3-cyclohexanedione, and has significant socio-economic benefits.

This invention provides a recombinant acetyl-CoA carboxylase encoding gene and its applications. Mutations at positions 5374, 5229, 5335, 5336, and 5493 in the recombinant acetyl-CoA carboxylase encoding gene provided by this invention can induce more significant resistance in rice expressing this recombinant acetyl-CoA carboxylase. In particular, it shows a significant increase in resistance to seven ACCase inhibitors from three major chemically distinct classes: arbutin (APP), quizalofop-P-ethyl, quizalofop-P-ethyl, and flupyrflupyr; cyclohexenone (CHD), clethodim and clodinafop-P-ethyl; and neophenylpyrazoline (DEN), clodinafop-P-ethyl.

The application discloses a method for synthesizing dibenzyl-alpha,alpha-diphenylamine compounds, and belongs to the technical field of organic synthesis. The method uses aromatic dialdehyde, 2-cyclohexenone and benzylamine as raw materials, and carries out a heating reaction in an organic solvent in the presence of titanium tetrachloride. After the reaction is completed, an N,N'-dibenzyl-substituted dibenzyl-alpha,alpha-diphenylamine intermediate is separated and purified. The intermediate is subjected to hydrogenation and debenzylization by using Pd-C / H2, and after separation and purification, the dibenzyl-alpha,alpha-diphenylamine compound is obtained. The preparation process is mild and simple, and the problems of low chemical selectivity and low regioselectivity in traditional synthesis are avoided. In addition, the aryl compatibility of the aromatic dialdehyde is good, and the atomic economy is high, thereby providing raw material support for new drug screening and monomer synthesis of organic functional materials.

The invention relates to a photo-initiated synthetic aminophenol compound method and application, and belongs to the technical field of organic synthesis. The synthesis method comprises the following steps: deprotonating a 1-hydroxybenzotriazole compound under an alkaline condition, and carrying out cracking reaction under the excitation of visible light to generate a high-activity biradical intermediate which is unstable and can be rapidly tautomerized into a more stable nitrosobenzene anion intermediate; the intermediate further reacts with cyclohexenone substances to synthesize the aminophenol derivative in one step. The method is simple and efficient, simple and convenient to operate, free of transition metal and additional oxidizing agents, simple and easily available in raw material reagent, high in product yield and capable of realizing large-scale synthesis, and a new method is provided for rapidly synthesizing the aminophenol compound. The synthesized aminophenol compound has good antibacterial activity, and especially has huge potential in the aspect of preventing and treating anthracnose of tea trees.

The invention relates to silicon-containing three-dimensional center silacyclohexenone skeleton borane as well as a preparation method and application thereof, the silicon-containing three-dimensional center silacyclohexenone skeleton borane has a structural formula as shown in a formula (I), and substituent groups R1 and R2 are respectively aryl or alkyl. According to the synthesis method of the compound, metal copper is used as a catalyst, and under the combined action of a chiral phosphine ligand and alkali, silacyclohexenone and a diborane compound are subjected to a hydroboration reaction to synthesize the compound. The synthesis method provided by the invention is simple to operate, mild in reaction condition, high in substrate universality, high in product yield and high in enantioselectivity. The synthesized compound is an important silicon-containing stereo center heterocyclic compound and can be widely applied to various fields of organic synthesis, medicine, material chemistry and fine chemical engineering.

The present application relates to the field of pesticides, and discloses a pesticide composition, application and herbicide, wherein the composition contains a herbicidal effective amount of component A and component B, the content weight ratio of the component A and the component B is 1:(0.5-70), the component A is a compound 168 shown in formula (I), and the component B is cyhalofop-butyl shown in formula (II); optionally, the composition further contains component C shown in formula (III). The pesticide composition and herbicide provided by the present application can overcome the defects that barnyard grass, leafflower, crabgrass, rice Lee grass and other gramineous weeds in rice fields have resistance to aryloxyphenoxypropionic acid herbicides such as cyhalofop-butyl, and can overcome the defects that the use of cyclohexenone herbicides for weed control is easy to cause phytotoxicity to crops such as rice, has obvious and excellent herbicidal effect, and has good safety to crops such as rice.

The invention discloses a method for catalyzing hydrolysis of 3, 3 '-oxybis (cyclohex-2-ene-1-ketone) by using a carbon material, and under the action of a biochar loaded potassium magnesium oxide catalyst rich in strongly basic sites, the 3, 3'-oxybis (cyclohex-2-ene-1-ketone) is subjected to a hydrolysis reaction to generate 1, 3-cyclohexanedione. The raw material 3, 3 '-oxybis (cyclohex-2-ene-1-ketone) used in the method is a byproduct of 1, 3-cyclohexanedione prepared by a resorcinol method, and is low in cost and easy to obtain. According to the method, 1, 3-cyclohexanedione is prepared from 1, 3 '-oxybis (cyclohex-2-ene-1-ketone) through a catalytic hydrolysis reaction, so that by-product value increase of the CHD industry is realized, the solid waste output is reduced, the production cost of 1, 3-cyclohexanedione is reduced, and the method has relatively high social and economic effects.

This invention discloses a method for the highly selective oxidation of cyclohexene to cyclohexenone using rare-earth-based perovskite, relating to the field of cyclohexene oxidation for cyclohexenone preparation technology. It addresses the problems of existing methods being either not environmentally friendly enough, having insufficiently mild reaction conditions, or having long reaction times. This invention involves adding cyclohexene, a rare-earth-based perovskite catalyst, and a liquid-phase reaction medium to a photoreaction tube, heating the resulting mixture to 60–80°C and maintaining the temperature, intermittently introducing oxygen as an oxidant, and reacting fully under light and stirring conditions to obtain the product. This invention is simple and convenient to operate, and can complete the catalytic oxidation in a short time under mild reaction conditions with low temperature and no pressure required. The reaction process is green and mild, with high cyclohexene conversion and high selectivity for cyclohexenone, and low production cost, making it suitable for large-scale production.

The invention relates to a weeding composition. The active ingredients of the weeding composition comprise cyclohexenone herbicides, halauxifen-methyl and metamifop. Wherein the cyclohexenone herbicide is selected from profoxydim or benzopyridone. In the weeding composition provided by the invention, the weight ratio of the three active ingredients is (0.5-2.5): (0.5-2.5): (12-24). The weeding composition provided by the invention can further comprise an agriculturally acceptable auxiliary agent and a carrier, and can be prepared into agriculturally acceptable dosage forms. The invention also relates to application and a method of the weeding composition for preventing and treating agricultural weeds.

The invention discloses a preparation method of a P-Betti alkali compound, and belongs to the technical field of organic synthesis. The method disclosed by the invention comprises the following steps: mixing 2-benzylidene-cyclohex-3-ene-1-ketone, diaryl phosphine oxide, alkali and an organic solvent, and carrying out a reaction on the 2-benzylidene-cyclohex-3-ene-1-ketone, the diaryl phosphine oxide, the alkali and the organic solvent; after the reaction is finished, carrying out acid washing, then drying an organic phase, and evaporating to remove a solvent to obtain a mixture containing an allyl phosphine oxide compound; then adding copper bromide and acetonitrile into the allyl phosphine oxide for reaction; and after the reaction is finished, evaporating to remove the solvent, separating and purifying residues, eluting with an eluent, evaporating the eluent to remove the solvent, and drying to obtain the P-Betti alkali compound. The P-Betti alkali synthesis method is high in innovation, mild in reaction condition, high in operation convenience and excellent in functional group compatibility, and the obtained P-Betti alkali compound with the diversified structure is an important organic synthesis intermediate and can also serve as a potential P, O-bidentate ligand to optimize the catalytic performance of transition metal.

The application belongs to the technical field of fluorescent probes, and relates to a signal amplification type glutathione S-transferase fluorescent probe and a preparation method and application thereof. The compound has a structure shown in formula (I). The glutathione S-transferase fluorescent probe based on a cyclohexenone recognition unit provided by the application shows sensitive detection on glutathione S-transferase, can realize self-amplification signal triggered by mercapto protein in a low-concentration glutathione environment, and can be successfully applied to visual imaging of glutathione S-transferase in various insects and weeds. Formula (I).

The application discloses a cyclohexenone compound and a preparation method and application thereof, the compound has a structure shown in formula 1, and is obtained by being separated and purified from a fermentation product of a deep soil source fungus. The compound is obtained by the following steps: adopting a deep soil fungus Sordariomycetes sp. GZWMJZ-1598, using a solid state fermentation mode, after fermentation, and then through extraction, monomer separation and purification. The structure of the compound is characterized and confirmed by high resolution mass spectrometry, nuclear magnetic resonance spectroscopy, single crystal X diffraction and other methods. The cyclohexenone compound has a significant inhibitory effect on the NO release amount of LPS-induced RAW264.7 inflammatory cells, and can be applied to preparation of anti-inflammatory drug preparations.