5-hydroxypyrazol-4-yl-carbonyl-substituted saccharin...

C - Chemistry – Metallurgy – 07 – D

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C07D 417/06 (2006.01) A01N 43/80 (2006.01)

Patent

CA 2197118

The disclosure is of 5-hydroxypyrazol-4-yl-carbonyl-substituted saccharin derivatives of formula (I), in which the substituents have the following meanings: L,M stand for hydrogen, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkylthio, chlorine, cyano, methylsulphonyl, nitro or trifluoromethyl; Z stands for hydrogen, C1-C4 alkyl, C3-C8 cycloalkyl, C3-C6-alkenyl, C3-C5-alkinyl, C1-C4 acyl, benzyl or phenyl (the phenyl rings optionally being each substituted by a halogen or C1-C4 alkyl); Q stands for a CO-J group; J stands for a 5- hydroxypyrazol ring linked at position 4 and of formula (II), in which R1 represents C1-C4 alkyl, and R2 represents hydrogen or methyl. Also disclosed are the salts of formula (I) compounds commonly used in agriculture.

L'invention concerne des dérivés de saccharine substitués par 5-hydroxypyrazol-4-yl-carbonyle, de formule (I), où: L,M représentent hydrogène, alkyle comportant un à quatre atomes de carbone, alcoxy comportant un à quatre atomes de carbone, alkylthio comportant un à quatre atomes de carbone, chlore, cyano, méthylsulfonyle, nitro ou trifluorométhyle; Z représente hydrogène, alkyle comportant un à quatre atomes de carbone, cycloalkyle comportant trois à huit atomes de carbone, alcényle comportant trois à six atomes de carbone, alkynyle comportant trois à cinq atomes de carbone, acyle comportant un à quatre atomes de carbone, benzyle ou phényle, les noyaux phényle étant éventuellement substitués chacun par halogène ou alkyle comportant un à quatre atomes de carbone; Q représente un radical CO-J; J représente un noyau 5-hydroxypyrazole lié en position 4, de formule (II), où R?1¿ représente alkyle comportant un à quatre atomes de carbone et R?2¿ représente hydrogène ou méthyle. L'invention concerne également les sels utilisés communément en agriculture des composés de formule (I).

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