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Patent Searching and Data


Title:
2-ALKOXYCARBONYLACYL-4-BUTANOLIDE COMPOUND AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH0770100
Kind Code:
A
Abstract:

PURPOSE: To obtain the subject new compound useful as a synthetic intermediate for a yellow coupler for color photograph from inexpensive and readily obtainable compounds as starting raw materials in a short process under a mild condition.

CONSTITUTION: A 2-alkoxycarbonylacyl-4-butanolide compound of formula I (R1 to R7 each is H, an alkyl, an aryl, an alkoxy, an aryloxy, an alkylthio, an arylthio; R8 is an alkyl) such as 2-ethoxycarbonylacyl-2-ethyl-4-butanolide. The compound of formula I is obtained by reacting a 2-alkoxycarbonyl-4- butanolide compound of formula II (R9 is an alkyl) with an ester of formula III (R10 is an alkyl) in the presence of a base. The compound of formula II can be synthesized from a readily obtainable γ-butyrolactone derivative or a malonic ester derivative.


Inventors:
YAMAKAWA KAZUYOSHI
SATO TADAHISA
SHIMURA YOSHIO
HANAKI KOICHI
Application Number:
JP1993000239136
Publication Date:
March 14, 1995
Filing Date:
August 31, 1993
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
C07D307/33; C07D307/32; C09B55/00; (IPC1-7): C07D307/33; C09B55/00
Attorney, Agent or Firm:
Toshizo Iida