New sulfonyl compound and use of said compound in the process of producing vitamin A or its esters
申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0456287A1
公开(公告)日:1991-11-13
The invention relates to a new sulfonyl compound having the general formula
wherein
R₁is an unsubstituted or substituted aryl group; and
R₂is a C₁-C₂₀ alkyl group, a C₂-C₂₀ alkenyl group or a C₂-C₂₀ alkynyl group, which groups may be substituted with one or more substituents selected from the group consisting of C₁-C₄ alkoxy, halogen, unsubstituted aryl and substituted aryl; or wherein R₂ is a tri(hydrocarbyl)silyl group, an optionally lower-alkyl- substituted dihydro- or tetrahydropyran-2-yl group, an optionally lower- alkyl-substitute dihydro- or tetrahydro-fur-2-yl group, or a lower alkoxyalkylgroup.
This sulfonyl compound can be used as an intermediate in the process of producing vitamin A or its esters.
本发明涉及一种新的磺酰基化合物,其具有下列通式:
其中,R₁是未取代或取代的芳基基团;R₂是C₁-C₂₀烷基基团、C₂-C₂₀烯基基团或C₂-C₂₀炔基基团,这些基团可以被一个或多个来自C₁-C₄烷氧基、卤素、未取代的芳基和取代的芳基的取代基所取代;或者R₂是三(烃基)硅基团、一个可选的低烷基取代的二氢或四氢吡喃-2-基团、一个可选的低烷基取代的二氢或四氢呋喃-2-基团或一个低烷氧基烷基基团。
该磺酰基化合物可用作生产维生素A或其酯的过程中间体。