Process for producing lactone

Details Process for producing lactone Process for producing lactone

2003-02-03

2009-08-25

Seaman, D. Margaret (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07579485

ABSTRACT:
A method for producing lactones, which comprises reacting an amide compound of Formula (I):[wherein X represents a halogen atom; R, R′ and R1to R6each independently represents a hydrogen atom or any desired substituent; and n represents an integer of 0 to 2] with an aqueous medium.

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Barton et al., Journal of the Chemical Society, “Photochemical transformations. XVI. A novel synthesis of lactones”, 1965, pp. 181-190.
Osamu Kanno, et al., “Efficient syntheses of (S)-4-hydroxy-2-pyrrolidinone derivatives”, Heterocycles, vol. 53, No. 1, pp. 173-181 2000.
Patent Abstracts of Japan, JP 04-365491, Dec. 17, 1992.
Wan Yong Lou, et al., “Research Progress on Enzymatic Hydrolysis of Nitrile”, 28(6), 2001, pp. 76-81 (with English Abstract).

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