| abstract |
A novel process for preparing the compounds of the formula I n n n where: n n is 0, 1 or 2; n R 1 ,R 2 are C 1 -C 6 -alkyl; n R 3 ,R 4 ,R 5 are hydrogen or C 1 -C 6 -alkyl, or R 4 and R 5 together form a bond; n R 6 is Cl, Br, n which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II n n n with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction 40 with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I. |