Lactone preparation by cyclization

Details Lactone preparation by cyclization Lactone preparation by cyclization

1979-06-04

1981-01-27

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30732

Patent

active

042474680

ABSTRACT:
A process for cyclizing 2,4-dibromobutyric acid (DBBA) to alpha-bromo-gamma-butyrolactone (BBL) which comprises contacting the dibromobutyric acid with a base at a temperature between 20.degree. C. and 100.degree. C. and a pH below about 4.0.

REFERENCES:
patent: 2530348 (1950-11-01), Britton et al.
patent: 3933860 (1976-01-01), Chan
J. E. Litvak et al., Jour. Am. Chem. Soc., vol. 67, (1945), pp. 2218-2220.
H. Plieninger, Chemische Berichte, vol. 83, (1950), pp. 265-268.

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