A COMPOSITION AND METHOD FOR PREPARING N-PHENYLPYRAZOLE-1-CARBOXAMIDES

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)...

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Hauptverfasser: SONDERGAARD, Kare, VINTHER, Jack, K
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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.whereinR1, R2, R3, R4, R5, R6, R7 and R8 are as defined in the disclosure.