Preparation of 3-(2-acyloxyethyl)-dihydro-2(3H)furanones

Details Preparation of 3-(2-acyloxyethyl)-dihydro-2(3H)furanones Preparation of 3-(2-acyloxyethyl)-dihydro-2(3H)furanones

1993-07-29

1995-11-14

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30712

Patent

active

054668310

ABSTRACT:
A process for the preparation of 3-(2'-acyloxyethyl)-dihydro-2(3H)furanones of the general formula I ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl, in which a 3-(2'-oxyethyl)-dihydro-2(3H)furanone of the general formula II ##STR2## in which R.sup.2 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl is caused to react with a carboxylic acid, a carboxylic anhydride, and/or an acyl halide in the presence of an acid catalyst at temperatures of from 50.degree. to 250.degree. C. and pressures of from 0.1 to 100 bar.

REFERENCES:
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patent: 4734521 (1988-03-01), Frazier
patent: 4831166 (1989-05-01), Eckhardt et al.
patent: 4837346 (1989-06-01), Becker et al.
Ganem et al, Journal of Organic Chemistry, vol. 39, No. 25 (1974), pp. 3728-3730.

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