70 results about "Acequinocyl" patented technology

A method for producing a cellulose acylate composition, which comprises filtering a solution in which cellulose acylate satisfying the following formulae 1 to 3 and having melt viscosity of 150 to 1000 Pa·s at 230° C. is dissolved in a solvent through a filter having a retention particle size of 0.1 to 40 μm, and mixing the filtered solution with a poor solvent to reprecipitate cellulose acylate:1.5≦A+B≦3Formula 10≦A≦2.0Formula 21.0≦B≦3Formula 3where A is a substitution degree for an acetyl group of a hydrogen atom which constitutes a hydroxyl group of cellulose, and B is a substitution degree for an acyl group having 3 to 7 carbon atoms of a hydrogen atom which constitutes a hydroxyl group of cellulose.

The present invention discloses a compound 2-methyl-5-chloro-1,4-p-phenylenediamine, its preparation method and use. It is characterized by that under the acidic condition 2-methyl-5-chloro-phenylamine and acetic anhydride are reacted to obtain N-acetyl-2-methyl-5-chloro-phenylamine, then it uses a mixed acid to make said obtained material undergo the process of nitrate to obtain N-acetyl-2-methyl-4-nitro-5-chloro-phenylamine, and then makes said material undergo the hydrolysis to remove acetyl, and finally utilizes hydrochloric acid and adds the iron powder to make reduction to obtain the invented product. Said compound can be used for synthesizing paint, and synthesizing dyestuff, also can be used for preparing colour developing reagent.

The invention discloses a copper compound adopting 2-acetyl-3-ethyl pyrazine thiosemicarbazone as ligand as well as a synthetic method and application thereof. The synthetic method of the copper compound comprises the following steps: measuring 2-acetyl-3-ethyl pyrazine and thiosemicarbazide, reacting by using methanol as a solvent, after the reaction, transferring into a beaker, volatilizing, crystallizing, obtaining ligand 2-acetyl-ethyl pyrazine thiosemicarbazone crystals, filtering the crystals, and washing the crystals by using methanol; enabling the ligand 2-acetyl-ethyl pyrazine thiosemicarbazone to react with CuCl2 or CuBr2 in the mixed solvent of acetonitrile and methanol, transferring the reactant into the beaker, standing, cooling, volatilizing and crystallizing, collecting thecrystals, and obtaining the target compound. By researching the in-vitro glioma resistance and drug-resistant strain activity of the synthesized copper compound, the result shows that the compound forms thiosemicarbazone ligand with the metal copper, the activity is greatly improved, the glioma resistant activity is excellent, and the drug resistance can be overcome to certain extent.

The invention provides an acaricide comprising effective components of: acequinocyl, and at least one selected from abamectin, ivermectin, methylamino abamectin benzoate, and milbemectin. A mass ratio of the at least one selected from abamectin, ivermectin, methylamino abamectin benzoate, and milbemectin to acequinocyl is 50:1-1:50. According to the invention, through the formulation of the effective components, a synergetic effect of the acaricide is effectively improved, and a controlling effect of the acaricide against target pest mites is substantially improved. Because the acaricide has an excellent synergetic effect, the potency of the acaricide is improved, field dosage of the acaricide is reduced, pesticide residue and harm to beneficial living things are effectively reduced; and controlling cost and environment pollution are reduced. According to the invention, action mechanisms of the effective components of the acaricide are fully utilized, such that a synergetic effect is achieved by using the two components, and drug resistance of the pest mites can be effectively retarded or overcome.

Various processes are disclosed for preparing protected epicatechin oligomers having (4β,8)-interflavan linkages. In one process, a tetra-O-protected epicatechin monomer or oligomer is coupled with a protected, C-4 activated epicatechin monomer in the presence of an acidic clay such as a mortmorillonite clay. In another process, a 5,7,3′,4′-benzyl protected or a 3-acetyl-, 5,7,3′,4′-benzyl protected epicatechin or catechin monomer or oligomer is reacted with 3-O-acetyl-4-[(2-benzothiazolyl)thio]-5,7,3′,4′-tetra-O-benzylepicatechin in the presence of silver tetrafluoroborate. In another process, two 5,7,3′,4′-benzyl protected epicatechin monomers activated with 2-(benzothiazolyl)thio groups at the C-4 positions are cross-coupled in the presence of silver tetrofluoroborate. A process is also disclosed for reacting an unprotected epicatechin or catechin monomer with 4-(benzylthio)epicatechin or catechin. The use of naturally-derived and synthetically-prepared procyanidin (4β,8)4-pentamers to treat cancer is also disclosed.

The present invention discloses a pyriminostrobin-containing acaricidal composition, which is an acaricidal composition containing an active component A and an active component B, wherein the active component A is selected from pyriminostrobin, the active component B is any one compound selected from etoxazole, fluacrypyrim, acequinocyl and cyflumetofen, and a weight ratio of the active component A to the active component B is 1:70-70:1. The composition provides synergy effects for a plurality of harmful mites harmful for agricultural production, and has characteristics of pesticide consumption reduction, reduction of residual pesticide on crops, environmental pollution reduction, safety to human and animals, good environment compatibility, and harmful mite drug resistance generation resistance.

The invention discloses a method for separating and purifying dendrobium devonianum homogeneous polysaccharides and aims to solve the problem that the separation, purification and structural analysis of dendrobium devonianum polysaccharides have certain difficulty due to the fact that the dendrobium devonianum polysaccharides are high in viscosity and large in high-activity polysaccharide segment molecular weight. The method includes: separating with a step-by-step ethanol precipitation method, and purifying with a gel column to obtain pure the dendrobium devonianum homogeneous polysaccharides. In addition, the invention further uses multispectral analysis to identify the skeletal structure of the dendrobium devonianum homogeneous polysaccharides, the primary structure of the dendrobium devonianum homogeneous polysaccharides can be identified accurately, and the main polysaccharides in dendrobium devonianum can be determined as acetyl glucomannan.

The invention provides a composition for removing dark circles and under-eye puffiness as well as a preparation method and application thereof. Based on the total mass of the composition for removingdark circles and under-eye puffiness, the composition for removing dark circles and under-eye puffiness is prepared from 0.01%-3% of fraxinus chinensis bark extract, 0.01%-1.5% of an asparagopsis armata extract, 0.01%-5% of glucosyl hesperidin, 0.001%-0.05% of acetyl tetrapeptide-5, and 0.1-10% of a coffee extract. According to the composition for removing dark circles and under-eye puffiness, allthe components are mixed for use, the purpose of synergistic interaction can be achieved, and therefore the problems of the dark circles and the under-eye puffiness are effectively solved.

The invention discloses an anti-novel coronavirus naphthoquinone compound and a medical application of the naphthoquinone compound. The structure of the compound is shown as a formula (I), wherein R1is hydrogen, methyl, ethyl, acetyl or propionyl; and R2 is hydrogen, methyl or ethyl. The compound disclosed by the invention has very strong activity of resisting the novel coronavirus, and can be used for inhibiting 3CL hydrolase (3C-like proteinase, 3CLpro) of the 2019-nCoV novel coronavirus. The in-vitro activity determination experiments show that the enzyme inhibition rate of part of the compounds reaches 99% under the concentration of 1 [mu] M. The naphthoquinone compound disclosed by the invention is clear in structure, simple and convenient in preparation method and high in yield, andhas important significance for developing efficient and low-toxicity novel anti-novel coronavirus drugs.

The present application discloses an efficient process for the preparation of N-acetyl-L-cysteine amide (NACA) starting with N-acetyl-L-cysteine.

The invention relates to a kind of triazole glycolipid derivatives and application thereof to synergically resist drug-resistant bacteria. The triazole derivatives containing a monosaccharide group are compounds shown as a formula I, or pharmaceutically acceptable salts. The provided triazole derivatives have synergic bacteriostatic effect for conventional antibiotics, help to substantially reduce usage amount of antibiotics when being combined with the conventional antibiotics for usage, and provide an approach for reasonable safe usage of antibiotics. In the formula I, R1 is an acetyl-protected or non-acetyl-protected monosaccharide group, R2 is a C6-C18 linear or branched alkyl, and n is an integer of 1-4.

The invention discloses a novel farm-chemical pesticide composition. The effective components of the novel farm-chemical pesticide composition contain a compound containing pyridyl pyrazole amide mother ring structure and at least one pesticide b, wherein the pesticide b includes acequinocyl, fipronil carbonate, tebufenpyrad fluorine, acetoprole, afidopyropen, pyridalyl or amidoflumet. The compound a in the composition disclosed by the invention contains the pyridyl pyrazole amide mother ring structure, the structure has a good insecticidal effect and can be applied to the prevention and treatment of agricultural, forestall or sanitary pests, and the compound a can be compounded with existing pesticides and has good prevention and treatment effects for the pests with drug resistance; and the compound a has no cross resistance with existing conventional pesticides and has the advantages of low toxicity, environmental friendliness, safety in use, wide bacteriocidal spectrum, rapid pesticide effect and long lasting period.

The present application discloses an efficient process for the preparation of N-acetyl-L-cysteine amide (NACA) starting with N-acetyl-L-cysteine.

The invention discloses a method for synthesis of alpha,alpha-diphenyl-4-piperidine methanol. The method comprises the steps: taking 4-piperidine formic acid as a raw material, carrying out a reaction with an acetylation reagent to obtain N-acetyl piperidine formic acid; firstly generating N-acetyl piperidine formyl chloride from the obtained N-acetyl piperidine formic acid, and then carrying out a Friedel-Crafts acylation reaction with benzene to generate N-acetyl-4-benzoyl piperidine; carrying out a Grignard reaction of the obtained N-acetyl-4-benzoyl piperidine with phenyl magnesium halide to obtain N-acetyl-alpha,alpha-diphenyl-4-piperidine methanol; and deacetylating the N-acetyl-alpha,alpha-diphenyl-4-piperidine methanol to obtain the alpha,alpha-diphenyl-4-piperidine methanol. The synthesis method has the characteristics of cheap and easily obtained raw materials, simple process steps, high reaction yield and low costs of raw materials, and is suitable for industrialized production.

The invention discloses an anti-novel coronavirus naphthoquinone compound and a medical application of the naphthoquinone compound. The structure of the compound is shown as a formula (I), wherein R1is hydrogen, methyl, ethyl, acetyl or propionyl; and R2 is hydrogen, methyl or ethyl. The compound disclosed by the invention has very strong activity of resisting the novel coronavirus, and can be used for inhibiting 3CL hydrolase (3C-like proteinase, 3CLpro) of the 2019-nCoV novel coronavirus. The in-vitro activity determination experiments show that the enzyme inhibition rate of part of the compounds reaches 99% under the concentration of 1 [mu] M. The naphthoquinone compound disclosed by the invention is clear in structure, simple and convenient in preparation method and high in yield, andhas important significance for developing efficient and low-toxicity novel anti-novel coronavirus drugs.

The invention discloses an acaricide and a preparation method thereof, and the acaricide comprises the components in parts by weight: 4-10 parts of fatty alcohol polyoxyethylene ether, 5-12 parts of bifenthrin, 1-4 parts of rotenone, 3-8 parts of orange peel, 2-7 parts of lemon peel, 15-25 parts of a surfactant, 1-4 parts of acetamiprid, 10-15 parts of acequinocyl, 3-8 parts of ethylicin, 10-15 parts of sphaerophysa salsula, 3-8 parts of thyme oil, 10-15 parts of fenpyroximate, and 4-10 parts of fenoxycarb. The production technology is simple, the production process is environmentally friendly and pollution-free, and the prepared acaricide can effectively kill various kinds of harmful mites on crops and cannot produce harm to the crops; in addition, with use for a long time, the acaricide cannot cause pollution to surrounding environments and soil, and has good environment-friendly effect.

The invention belongs to the field of agricultural chemistry, and particularly relates to a preparation method of a safe and efficient broad-spectrum paddy field herbicide pyriminobac-methyl ((E)-pyriminobac-methyl). The method comprises the following steps: with 2-acetyl-6-nitrobenzoic acid as a raw material, carrying out esterification reaction under an acid catalyst to prepare the 2-acetyl-6-nitrobenzene methyl formate; carrying out hydrogenation reduction reaction under catalysis of Ni / Al to prepare 2-amino-6-acetylbenzene methyl formate; carrying out diazotization to prepare the 6-methyl acetylsalicylate; carrying out imidization on methoxyamine hydrochloride under basic catalysis to prepare a salicylic acid midbody 6-(1-(N-methoxy)ethyl) methyl salicylate; and finally carrying out condensation reaction on the 2-mesyl-4,6-dimethoxy pyrimidine to prepare the pyriminobac-methyl. The method is a clean production technique and is suitable for mass production.

The invention provides a method for preparing 3-acetyl-10-alkyl phenothiazine. The method comprises the following steps of: 1, adding A mol of 10-alkyl phenothiazine and B mol of acetic anhydride to a reaction vessel; then adding phosphoric acid; reacting for 0.5 to 2 hours at 20 to 60 DEG C to obtain a reaction liquid, wherein the ratio of A to B is 1: (7-10); 2, cooling the reaction liquid to room temperature; adding the reaction liquid to water; filtering after a solid is separated; washing and drying a filter cake; and then recrystallizing, thus obtaining the 3-acetyl-10-alkyl phenothiazine. The method does not need a solvent for reaction, the reaction process is simple, the reaction time is short, the reaction condition is mild, the requirement on equipment is low, the post-processing operation is simple, the yield of the 3-acetyl-10-alkyl phenothiazine is relatively high, and the method is an economic, convenient and efficient method for preparing the 3-acetyl-10-alkyl phenothiazine.

Exemplary embodiments of solutions of plasma activated water and peroxyacetic acid are disclosed herein. In addition, exemplary embodiments of methods for making solutions are disclosed herein. Some methods include exposing water to a plasma gas to activate the water, adding acetic acid to the activated water; and mixing the acetic acid and activated water to form a solution. Additional exemplary methods include adding acetic acid to water to form a solution, mixing solution of acetic acid and water together; and exposing the solution to a plasma gas to activate the solution. Another exemplary embodiment includes exposing water to a plasma gas to activate the water; adding an acetyl group donor to the activated water; and mixing the acetyl group donor and activated water to form a solution.

The invention belongs to the technical field of organic chemistry, in particular to a method for preparing sugar ortho ester. The method comprises the following steps: adding acetyl or benzoyl glycosyl bromide to a system containing alcohol or monosaccharide, sodium bicarbonate, tetrabutyl ammonium bromide, and acetonitrile or dichloromethane containing, stirring the mixture for reaction, and finally generating the sugar ortho ester. The method has the advantages of easy operation, little environmental pollution, high yield, low cost, easy industrialization and the like.

In crop production in the fields of agriculture, horticulture and the like, the damage caused by insect pests etc. is still immense, and insect pests resistant to existing insecticides have emerged. Under such circumstances, the development of novel agricultural and horticultural insecticides is desired. The present invention provides an agricultural and horticultural insecticide comprising a 1H-pyrrolo-condensed heterocyclic compound represented by the general formula (1):{wherein A and A1 each represent a nitrogen atom, R3 and R4 each represent a haloalkyl group, R2 represents a hydrogen atom or an acetyl group, R1 represents a halogen atom, and m represents 0 or 2}, an N-oxide thereof or a salt thereof as an active ingredient, and a method for using the insecticide.

The invention discloses an anti-mite composition with pyriminostrobin. The anti-mite composition comprises an active ingredient A and an active ingredient B. The active ingredient A is selectively the pyriminostrobin, the active ingredient B is selectively one of chemical compounds including etoxazole, fluacrypyrim, acequinocyl and cyflumetofen, and a weight ratio of the active ingredient A to the active ingredient B is 1:70-70:1. The anti-mite composition has the advantages that synergistic effects can be realized by the anti-mite composition for diversified pest mites which are harmful for agricultural production, the usage of pesticides can be reduced, the amounts of residues of the pesticides on crops can be decreased, environmental pollution can be relieved, the anti-mite composition is safe for human and animals and good in environmental compatibility, and pesticide resistance of the pest mites can be prevented.

The present invention discloses a fluid composite that can control insects by heating and suffocating. The composite consists of a formula [I] compound with the weight of 0.01 to 20 percent, wherein, R represents methyl or hydrogen atom, O-acetyl triethyl citrate (C2-C4 alkyl) with the weight of 0.5 to 10 percent and hydrocarbon solvent of the weight of 60 to 99.49 percent.

An antifungal agent 6,7-disubstituted-5,8-quinolinedione derivatives, general formula represents 6,7-disubstituted-5,8-quinolinedione, wherein R1 represents phenylamino group substituted 1 to 3 with a substituent selected from the group consisting of a halogen atom and aceto group or a Cl-C20 alkylmercapto group, R2 represents thiocyano group or Cl-C20 alkylmercapto group. 6,7-disubstituted-5,8-quinolinedione derivatives and pharmaceutical acceptable salts theirof have a excellent antifungal activity. The invention disclosed a pharmaceutical composition which contains the compound as a active component, which has excellent antifungal activity against funges infecting human and animals.

The invention addresses the problem of providing a method for producing 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione that is suited to industrial production. The invention provides a method for producing 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione by reacting 3-bromo-3-buten-2-one and 2-hydroxy-1,4-naphthoquinone in the presence of a solvent, then obtaining crystals of 2-acetyl-4H,9H-naphtho[2,3-b]furan-4,9-dione by adding an alcohol-based solvent and / or water to the reaction system, and treating the crystals by using a specific adsorbent in the presence of a solvent.

Process for the preparation of N-acetyl protected amino acids of Formula Iby amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.

The invention discloses a breast-enlarging gel which comprises the following components by the weight percentage: 50%-55% of water, 2%-3.5% of butanediol, 1.5%-2.5% of 1,3-propanediol, 2%-5% of tripeptide-1, 0.1%-0.6% of acetylhexapeptide-8, 5.5%-8.5% of hydrolyzed collagen, 0.1%-0.3% of tocopherol, 0.1%-0.3% of xanthan, 0.05%-0.1% of sodium hyaluronate, 0.1%-0.3% of methyl hydroxybenzoate, 0.1%-0.2% of dihydroxymethyl imidazolidinyl urea, 0.2%-0.6% of PEG-40 hydrogenated castor oil, 1%-2.5% of hydroxyethyl cellulose, 1%-2.5% of a Xiaoyu bird's nest extract, 3%-5% of a deer antler extract, 1.5%-2.5% of a pueraria lobata wild ohwi extract, 0.5%-1% of a witchhazel extract, 3.5%-8.5% of a ginseng extract, 2.5%-5.5% of a herba centellae extract, 6%-8% of a scutellaria baicalensis extract and 1%-2% of a myrrh extract. The breast-enlarging gel has the advantages of reasonable formulation, convenient use, safety and environmental protection, can increase the gloss and elasticity of breast while enlarging the breast, and has quite good effects on repair of female breast postpartum relaxation, breast deformation, poor breast shape, external expansion and drooping of the breast, reduction ofbreast functions and other problems.