Process for producing beta-carotene, and intermediate compounds useful for the process
申请人:KURARAY CO., LTD.
公开号:EP0461653A1
公开(公告)日:1991-12-18
Provided is a novel process for readily producing β - carotene which comprises reacting a sulfone compound represented by the general formula (1), (2) or (3) with an alkali,
wherein R represents a phenyl group which may be substituted, R' a protecting group of acetal type and X a halogen atom.
本发明提供了一种易于生产β-胡萝卜素的新型工艺,该工艺包括将通式(1)、(2)或(3)所代表的砜化合物与碱反应、
其中 R 代表可能被取代的苯基,R'为缩醛型保护基团,X 为卤素原子。
JPH0449276A
申请人:——
公开号:JPH0449276A
公开(公告)日:1992-02-18
US5185468A
申请人:——
公开号:US5185468A
公开(公告)日:1993-02-09
US5237102A
申请人:——
公开号:US5237102A
公开(公告)日:1993-08-17
Process for producing .beta.-carotene, and intermediate compounds useful
申请人:Kuraray Company Ltd.
公开号:US05185468A1
公开(公告)日:1993-02-09
Provided is a novel process for readily producing .beta.-carotene by reacting a sulfone compound represented by the general formula (1), (2) or (3) with an alkali, ##STR1## wherein R represents a phenyl group which may be substituted, R' a protecting group of acetal type and X a halogen atom.