Azolyl-carboxylic acid derivatives and their use as fungicides

Details Azolyl-carboxylic acid derivatives and their use as fungicides Azolyl-carboxylic acid derivatives and their use as fungicides

C - Chemistry, Metallurgy

07

D

260/313, 167/9,

C07D 233/64 (2006.01) A01N 43/50 (2006.01) A01N 43/653 (2006.01) C07D 249/08 (2006.01) C07D 521/00 (2006.01)

Patent

CA 1092130

ABSTRACT OF THE DISCLOSURE The present invention relates to certain new azolyl-carboxylic acid de?ivatives, to a process for their preparation and to their use as fungicides. The new compounds correspond to the formula Image (I) in which R represents cyano or a -CO-OR3 or -CO-NR4R5 grouping, wherein R3 represents alkyl, R4 represents hydrogen, alkyl or optionally substituted phenyl and R5 represents hydrogen or alkyl, or R4 and R5 conjointly repre- sent a methylene bridge -(CH2)?-, which can contain a further hetero-atom wherein ? represents 2, 3, 4, 5, 6 or 7; R1 and R2, which may be identical or different, each represent alkyl or optionally substituted phenyl, or R1 and R2 conjointly form a carbocyclic ring, A represents a keto group or a CH(OH) grouping, Y represents the CH group or a nitrogen atom, Z represents halogen, alkyl, alkenyl, halogenoalkyl, cycloalkyl, alkoxy, alkylthio, al- koxycarbonyl, optionally substituted phenyl, optionally substituted phenoxy, optionally substituted phenylalkyl, cyano or nitro, and n represents 0, 1, 2, 3, 4 or 5, and their salts. The compound can be prepared by reaction of an azolyl-carboxylic acid derivative with an azole in the presence of a diluent and of an acid derivative thereby obtained is reduced selectively. The active compounds according to the invention are suitable for use as plant protection agents for combating fungi and bacteria. They develop a par- ticularly good activity against parasitic fungi on above-ground parts of plants.

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