摘要:
Oximino diphenyl ether derivatives having the general formula 1:- wherein R 1 represents a halogen atom or a haloalkyl group; R 2 and R 3 , which may be the same or different, each independently represents a hydrogen or halogen atom or a nitro, cyano or haloalkyl group;
X represents a cyano or triazole group or group SR 4 or NR 5 R 6 in which R 4 represents an optionally substituted alkyl, aryl, aralkyl, alkoxycarbonylalkyl or acyl group; R 5 represents an optionally substituted alkyl or aralkyl group and R 6 represents an optionally substituted alkyl, aralkyl or alkoxy group or the groups R 5 and R 6 together jointly represent an alkylene group; and Z represents a hydrogen atom or an optionally substituted alkyl, cycloalkyl, alkenyl, aralkyl, alkoxycarbonylalkyl, or acyl group. The preparation of such compounds; herbicidal compositions containing them and their herbicidal use.
摘要:
Disclosed is a continuous process for the production of methomyl comprising the steps of: continuously forming, in an inert organic solvent and at an elevated reaction-initiating temperature of from 30-70°C, a liquid mixture of methylthioacetaldoxime and with methyl isocyanate in an amount in excess of stoichiometric proportions; passing the mixture through a plug-flow, adiabatic, tubularreactor, maintained at a pressure of from 30 to 70 psig, to produce reaction product at a temperature up to a reactor discharge temperature of from 80 to 120°C; and withdrawing the reaction product from the reactor and stripping unreacted methyl isocyanate and solventtherefrom to provide product methomyl, while recycling at least a portion of the unreacted isocyanate and solvent to the mixture.
摘要:
Novel compounds are provided which exhibit activity as herbicides for combating weeds. The novel compounds have the formula: wherein X is hydrogen, halo, trihalomethyl, alkyl, nitro or cyano; Y is hydrogen or halo; Z is halo, trihalomethyl or pentahaloethyl; W is nitro, cyano, halo or a radical of the formula: S(O) n , R wherein R is (C,-C e ) alkyl or trihaloalkyl; n' is 0, 1 or 2; R 1 is hydrogen, halo, alkyl, mononuclear aryl, (C 1 -C 6 )alkoxy, (C 1 -C 6 )alkylthio or dialkylamino; R 2 is substituted alkyl (other than CF 3 ), trifluoromethyl, cyano, carboxy, substituted or unsubstituted alkoxy, alkoxycarbonyl, alkylcarbonyl, alkylthio, aminocarbonyl, mononuclear arylcarbonyl, mononuclear aryloxy or carboxy including agronomically acceptable amides, esters or salts of said carboxy or R 1 and R 2 may be joined together to form a ring containing from 4 to 8 nuclear carbon atoms.
摘要:
Disclosed are derivatives of 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides for use as herbicides, fungicides, plant dessicants and defoliants in agricultural and biocidal applications. Also disclosed are methods of making these compounds.
摘要:
Novel compounds are provided which exhibit activity as herbicides for combating weeds. The novel compounds have the formula: wherein X is hydrogen, halo, trihalomethyl, alkyl, nitro or cyano; Y is hydrogen or halo; Z is halo, trihalomethyl or pentahaloethyl; W is nitro, cyano, halo or a radical of the formula: S(O) n , R wherein R is (C,-C e ) alkyl or trihaloalkyl; n' is 0, 1 or 2; R 1 is hydrogen, halo, alkyl, mononuclear aryl, (C 1 -C 6 )alkoxy, (C 1 -C 6 )alkylthio or dialkylamino; R 2 is substituted alkyl (other than CF 3 ), trifluoromethyl, cyano, carboxy, substituted or unsubstituted alkoxy, alkoxycarbonyl, alkylcarbonyl, alkylthio, aminocarbonyl, mononuclear arylcarbonyl, mononuclear aryloxy or carboxy including agronomically acceptable amides, esters or salts of said carboxy or R 1 and R 2 may be joined together to form a ring containing from 4 to 8 nuclear carbon atoms.
摘要:
Quaternary ammonium alkyl esters and thioesters of acidic nonsteroidal anti-inflammatory drugs (NSAIDs) are disclosed. These esters and thioesters display the anti-inflammatory profile of the parent NSAIDs with greatly reduced gastrointestinal irritancy, providing a more favorable separation of therapeutic activity and toxicological side effects than the parent NSAIDs.
摘要:
N-methylcarbamate compounds such as oxamyl, aldicarb, carbaryl, and carbofuran can be prepared by reacting the corresponding oxime or phenol in aqueous suspension with phosgene and methylamine, simultaneously, in the presence of an alkaline base.
摘要:
Described are an oxime derivative of the formula: wherein R, is hydrogen or methyl, R 2 is hydrogen, C 1 ~C 4 - alkylthio, C 1 ~C 2 - monoalkylamino, C 1 ~C 2 - dialkylamino or cyano Z is or R 3 is methyl, ethyl, propyl or phenyl, R 4 is hydrogen or methyl, R 5 is C 1 ~C 4 - alkyl, R 6 is C 1 ~C 4 - alkylthio or C 1 ~C 3 - alkoxy, X is hydrogen, bromo, chloro or fluoro, Y is oxygen or sulfur; provided that X is bromo, chloro or fluoro when Z is n is 1 when X is bromo or chloro, n is 2 when X is fluoro and n is 1 or 2 when X is hydrogen processes for producing said compound, an insecticidal or acaricidal composition containing said compound as an effective component and a method for killing insect pests or acarids using an effective amount of said compound.