Novel monoesters of cis-cyclopentenediol, process for preparatio

Details Novel monoesters of cis-cyclopentenediol, process for preparatio Novel monoesters of cis-cyclopentenediol, process for preparatio

1977-10-04

1979-10-09

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603433R, 560 12, 562503, C07D20712, C07C14940

Patent

active

041705963

ABSTRACT:
A novel monoester of cis-cyclopentenediol of the following formula ##STR1## wherein ##STR2## is an optically active acyl moiety. The monoester can be prepared by reacting cis-2-cyclopentene-1,4-diol with an optically active carboxylic acid of the following formula ##STR3## wherein ##STR4## is the same as defined above, or its reactive derivative, and separating the resulting reaction product into the two individual diastereomers. Lactones can be prepared from the monoesters selectively and with commercial advantage.

REFERENCES:
patent: 3576009 (1971-04-01), Magnien et al.
patent: 3887606 (1975-06-01), Phillipps et al.
patent: 3904648 (1975-09-01), Kelly
patent: 3976680 (1976-08-01), Clark et al.
patent: 4064351 (1977-12-01), Sakai et al.
Corey et al., J.A.C.S., 91, 5675 (1969).

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