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Title:
PRODUCTION OF LACTONES AND ESTERS
Document Type and Number:
Japanese Patent JP3802087
Kind Code:
B2
Abstract:

PURPOSE: To provide a method capable of producing a lactone or a noncyclic ester containing an aromatic ring from a raw material ketone in the absence of a catalyst and even under a mild condition in high yield.
CONSTITUTION: In producing a lactone by oxidizing an alicyclic ketone in a liquid phase in the presence of both an aldehyde and oxygen or producing a noncyclic ester containing an aromatic ring by oxidizing a noncyclic ketone containing an aromatic ring in a liquid phase, 0.5-25wt.%, preferably 1-15wt.% based on the raw material ketone of an acid chloride, preferably an aromatic acid chloride (especially benzoyl chloride) is added to the reaction system and the reaction is carried out usually at 0-65°C, preferably 10-40°C. The reaction is preferably done in a solvent system selected from among an aromatic hydrocarbon, an alkyl halide, a halogenated hydrocarbon and an ester in terms of yield of the prepared lactone or ester. Since a metal catalyst is not used, side reactions of the formed product will not occur and after-treatment is simple.


Inventors:
Kiyoomi Kaneda
Shinji Ueno
Takuya Matsubara
Ishinaka Toshin
Application Number:
JP6805494A
Publication Date:
July 26, 2006
Filing Date:
March 10, 1994
Export Citation:
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Assignee:
Arakawa Chemical Industry Co., Ltd.
International Classes:
C07C67/42; C07D309/30; C07B41/12; C07C69/157; C07D311/00; C07D313/04; (IPC1-7): C07C69/157; C07B41/12; C07D309/30; C07D311/00; C07D313/04
Domestic Patent References:
JP6025083A
JP5310721A
JP5065245A
JP4275286A
JP44010243B1