Method for producing an optically active azolyl-.alpha.,.beta.-u

Details Method for producing an optically active azolyl-.alpha.,.beta.-u Method for producing an optically active azolyl-.alpha.,.beta.-u

1989-12-22

1992-09-01

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564 8, 5482684, C07F 502

Patent

active

051440717

ABSTRACT:
Alkenecarboxylic esters of the formula I ##STR1## where R.sup.1 is alkyl of 1 to 6 carbon atoms, R.sub.2 is hydrogen or alkyl or 1 to 4 carbon atoms, the substituents being identical or different, and n is 1, 2 or 3 are prepared by reacting lactones of the formula II ##STR2## where R.sup.2 has the same meanings as in the formula I, R.sub.3 is hydrogen or methyl and m is 0, 1 or 2, with the proviso that n and m differ by 1 when R.sub.3 is hydrogen and by 2 when R.sub.3 is methyl, with alkanols having 1 to 6 carbon atoms at from 50.degree. to 450.degree. C. in the presence of zeolites and/or phosphates as catalysts.

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