Preparation of isoxazolin-3-ylacylbenzenes

Abstract

A process is described for preparing isoxazoles of the formula I wherein R1 is hydrogen, C1-C6-alkyl, R2 is C1-C6-alkyl, R3, R4, R5 are hydrogen, C1-C6-alkyl, or R4 and R5 together form a bond, R6 is a heterocyclic ring, n is 0, 1 or 2; in which an intermediate of the formula VI is prepared, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of formula I. Novel intermediates for preparing the intermediates are described.

Dependencies are inferred from the claim text.