Title:
PROCESS FOR PRODUCING DIACETAL
Document Type and Number:
WIPO Patent Application WO/1992/004352
Kind Code:
A1
Abstract:
A process for producing diacetal such as 1,3:2,4-di(ester- or carbamoyl-substituted benzylidene)sorbitol by the condensation of a dialkyl acetal represented by general formula (III), with a polyhydric alcohol such as sorbitol, wherein Q represents -COOR1, -COOR2, -CONR3R3a or -CONR4R4a, and R5 represents lower alkyl.
Inventors:
KOBAYASHI TOSHIAKI (JP)
KITAGAWA SACHIO (JP)
KITAGAWA SACHIO (JP)
Application Number:
PCT/JP1991/001162
Publication Date:
March 19, 1992
Filing Date:
August 30, 1991
Export Citation:
Assignee:
NEW JAPAN CHEM CO LTD (JP)
International Classes:
C07D493/04; C08G85/00; (IPC1-7): C07D493/04
Foreign References:
| JPH0267285A | 1990-03-07 | |||
| JPH01203389A | 1989-08-16 | |||
| JPH0242082A | 1990-02-13 |
Other References:
See also references of EP 0507950A1
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