Method for synthesis of 2-hydroxy-3-methyl cyclopent-2-ene-1-one

Details Method for synthesis of 2-hydroxy-3-methyl cyclopent-2-ene-1-one Method for synthesis of 2-hydroxy-3-methyl cyclopent-2-ene-1-one

1978-05-19

1979-09-18

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260586C, C07C 4500

Patent

active

041682807

ABSTRACT:
The known compound 2-hydroxy-3-methyl cyclopent-2-ene-1-one, used as a flavor imparting agent and commonly called maple lactone, is synthesized by a modified acyloin condensation of esters of 2-methyl glutaric acid in which oxygen is introduced in a specific manner to the reaction system.

REFERENCES:
patent: 2228268 (1941-01-01), Hansley
patent: 3402181 (1968-09-01), Erickson et al.
patent: 3628970 (1971-12-01), Stephens et al.
patent: 3652643 (1972-03-01), Leir
patent: 3754016 (1973-08-01), Oberhausli
patent: 3907896 (1975-09-01), Calame et al.
patent: 3922296 (1975-11-01), McFearin
patent: 3969408 (1976-07-01), Kyomosi et al.
House, "Modern Synthetic Reactions," 2nd Edition, pp. 169-171 (1972) W. A. Benjamin Inc., Menlo Park, Ca.

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