Alpha, beta-butenolide preparation

Details Alpha, beta-butenolide preparation Alpha, beta-butenolide preparation

1976-03-29

1977-06-21

Jaisle, Cecilia M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30732

Patent

active

040311147

ABSTRACT:
A method for preparing an alpha,beta-dehydro-gamma-butyrolactone which comprises contacting a carboxylic acid of the formula ##STR1## wherein R is H or C.sub.1 to C.sub.10 alkyl group, with oxygen and a catalyst comprising a noble metal halide, a variable valence transition metal halide and an alkali metal halide at a temperature between 50.degree. and 300.degree. C and superatmospheric pressure.

REFERENCES:
palm, et al., Chem. Abs. 66: 55835u (1967).
Franck-Neumann et al., Chem. Abs. 70: 46784g (1969).

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