| 摘要 |
<p>Process for the preparation of phenylbenzamide derivatives of formula A, <IMAGE> with R: (C1-C2)alkyl, substituted by 2 to 5 F, R1 and R2, which are identical or different, are methyl or ethyl or can together form a morpholino group. A condensation of a haloenone I with an acetoamide II is carried out according to the scheme: <IMAGE> in the presence of an organic solvent and of one to two equivalents of base, and the resulting product is subjected to a two-stage conversion, one stage of which is a reduction stage. The compounds A are agricultural fungicides.</p> |
