- Method for preparing amide through electrochemical dechlorination of trichloromethyl pyridine derivative
-
The invention discloses a method for preparing amide by electrochemical dechlorination of a trichloromethylpyridine derivative, the method is characterized by comprising the following steps of: (1) dissolving a polychloropyridine derivative in an amine so
- -
-
Paragraph 0033-0056
(2020/08/27)
-
- PROCESS FOR THE PREPARATION OF PYRIDYLCARBOXYLIC AMIDES AND ESTERS
-
The invention relates to a process for the preparation of pyridylcarboxylic amides and esters I, Formula (I) wherein Hal, X and R1 have the meanings given in claim 1, which comprises the following steps: (a) heating a mixture consisting essenti
- -
-
Page/Page column 21
(2010/11/27)
-
- Herbicidal carboxamide derivatives
-
The invention provides compounds of the general formula in whichR1 represents a hydrogen or halogen atom or an alkyl or haloalkyl group;the or each group X independently represents a halogen atom or an optionally substituted alkyl or alkoxy group or an alkenyloxy, alkynyloxy, cyano, carboxy, alkoxycarbonyl, (alkylthio)carbonyl, alkylcarbonyl, amido, alkylamido, nitro, alkylthio, haloalkylthio, alkenylthio, alkynylthio, alkylsulphinyl, alkylsulphonyl, alkyloximinoalkyl or alkenyloximinoalkyl group;n is 0 or an integer from 1 to 5; andL is an alkoxy group.
- -
-
-
- Preparation of hetero arylcarboxamides
-
The invention relates to a process for the preparation of heteroarylcarboxylic amides and esters of formula I in which one or two of the groups A1, A2, A3, A4, and A5 represent a nitrogen atom and the other groups each independently represent CR3, Hal rep
- -
-
-
- Process for the preparation of heteroarylcarboxylic amides and esters
-
The invention relates to a process for the preparation of heteroarylcarboxylic amides and esters of formula I in which A1through A5, R1, Hal and X one or twoof the groups A1, A2, A3, A
- -
-
-
- Herbicidal picolinamide derivatives
-
Herbicidal picolinamide derivatives are provided having the formula I STR1 which Z represents an oxygen or sulphur atom, R1 and R2 each independently represents a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, alkaryl, hydroxy, alkoxy, alkenyloxy, alkynyloxy, alkylcarbonyl, amino, mono- or di-alkylamino, alkoxycarbonylamino, arylamino, arylalkylamino or dialkylcarbamoyl group, or together represent an alkylene chain which is optionally interrupted by an oxygen or sulphur atom or by a group --NR-- in which R represents a hydrogen atom or an alkyl group, R3 independently represents a halogen atom or an alkyl or haloalkyl group, R4, R5 and R6 each independently represents a hydrogen or halogen atom, an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, alkaryl, alkoxy, amino, mono- or di-alkylamino, alkoxycarbonylamino, arylamino, dialkylcarbamoyl, acyl or acylamido group or a cyano group, with the proviso that R5 and R6 do not represent an acyl, acylamido or cyano group, and n represents 0, 1, 2 or 3.
- -
-
-
- Process for the preparation of acid chloride compounds
-
A process for preparing a compound of general formula STR1 where Ar represents an optionally substituted aromatic or heteroaromatic group, the process comprising reacting a compound of general formula where each L1 independently represents a leaving group (preferably a chlorine atom), with water in the presence of a Lewis acid and a chlorocarbon solvent which includes at least two chlorine atoms, is disclosed.
- -
-
-
- Herbicidal picolinamide derivatives
-
Compounds of the formula: STR1 wherein R1 and R2 each independently represents hydrogen, optionally substituted alkyl, aryl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aralkyl, alkaryl, hydroxy, alkoxy, alkenyloxy, alkynyloxy, al
- -
-
-