A process is described for preparing isoxazoles of the formula I
##STR00001## where the substituents are as defined below: R.sup.1 is
hydrogen, C.sub.1-C.sub.6-alkyl, R.sup.2 is C.sub.1-C.sub.6-alkyl,
R.sup.3, R.sup.4, R.sup.5 are hydrogen, C.sub.1-C.sub.6-alkyl, or R.sup.4
and R.sup.5 together form a bond, R.sup.6 is a heterocyclic ring, n is 0,
1 or 2; which comprises preparing an intermediate of the formula VI
##STR00002## where R1, R3, R4 and R5 are as defined above, followed by
halogenation, thiomethylation, oxidation and acylation to give compounds
of the formula I.Also novel intermediates for preparing the compounds of
the formula I and novel processes for preparing the intermediates are
described.