Manufacture of d,l-methol

Details Manufacture of d,l-methol Manufacture of d,l-methol

1974-02-19

1976-06-01

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 3512

Patent

active

039609707

ABSTRACT:
Manufacture of piperitenone by mixing excess mesityl oxide with 10 to 70% by weight aqueous potassium hydroxide solution, heating the mixture to a temperature of between 20.degree.C and the boiling point and introducing the methyl vinyl ketone into the heated mixture. d,1-methol is obtained directly, or via a mixture of methone and isomenthone, from the piperitenone which is obtained in good yield.

REFERENCES:
patent: 1776087 (1941-09-01), Schollkopf et al.
patent: 1811777 (1931-06-01), Blagden
patent: 2237980 (1941-04-01), Blagden
patent: 3238261 (1966-03-01), Beereboom
Ueda, "Bull. Agr. Chem. Soc., Japan," vol. 64, pp. 601-603 (1960).

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