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US 12,599,135 B2Granted
Composition and method for preparing N-phenylpyrazole-1-carboxamides
AssigneeFmc Corporation Fmc IP Technology GmbH
InventorsKåre Søndergaard, Jack K. Vinther
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Abstract
An improved method is disclosed for preparing an organic pesticide of Formula 4-A from (1) a composition comprising: (a) a crystalline organic pesticide; (b and c) compounds of Formulae 1 and 2; (d) an amine base and (e) an aprotic solvent; (2) reacting with a sulfonyl chloride of Formula 3; and (3) allowing the mixture to proceed to an organic pesticide of Formula 4-A. wherein R1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the disclosure.
Claims11
A composition comprising:
- (a) a crystalline organic pesticide, wherein the crystalline organic pesticide is a crystalline compound of Formula 4,
- wherein
- R1 is CH3;
- R2 is CN;
- R3 is CH3;
- R4 is Br;
- R5 is Cl;
- R6 is H;
- and
- Z is N;
- (b) a carboxylic acid compound of Formula 1,
- wherein
- R4 is Br;
- R5 is Cl;
- R6 is H;
- and
- Z is N;
- (c) an aniline compound of Formula 2,
- wherein
- R1 is CH3;
- R2 is CN;
- R3 is CH3;
- (d) an amine base and
- (e) an aprotic solvent,
- wherein the amount of crystalline compound of Formula 4 is 5 mol % to 30 mol % per mol of the carboxylic acid compound of Formula 1.
22 more elements
Dependencies are inferred from the claim text.