Process for producing optically active .beta.-lactones

Details Process for producing optically active .beta.-lactones Process for producing optically active .beta.-lactones

1999-03-10

2000-03-21

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502414, C07D30512, B01J 2000

Patent

active

060404655

ABSTRACT:
Disclosed is a process for producing an optically active .beta.-lactone represented by the general formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having 1-9 carbon atoms which can be branched or a cycloalkyl group having 5-7 carbon atoms. The process comprises reacting an aldehyde represented by the general formula (II):

REFERENCES:
Asymmetric (2+2) cycloaddition of ketene . . . Yasufumi Tamai et al J. Chem. Soc. 1994, pp. 2281-2282, Jul. 12, 1994.

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