申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0432818A2
公开(公告)日:1991-06-19
Process for ring opening compounds of the formula
in which R¹ is heteroaryl or aryl, R² is a leaving group, R³, R⁴, R⁵ and R⁶ are independently selected from hydrogen, alkyl, aralkyl, aryl, heteroaryl and alkenyl, provided that at least one of the groups R³ to R⁶ is other than hydrogen, by breaking the bond joining the carbon atom attached to R³ and the carbon atom attached to R⁶ in organic solution using silica,giving useful diene or allyl derivatives, certain of which are novel.
式的开环化合物的工艺
其中 R¹ 为杂芳基或芳基,R² 为离去基团,R³、R⁴、R⁵ 和 R⁶ 独立选自氢、烷基、芳基、芳基、杂芳基和烯基,条件是 R³ 至 R⁶ 中至少有一个基团不是氢、在有机溶液中用二氧化硅断开连接 R³ 的碳原子和连接 R⁶ 的碳原子的键,得到有用的二烯或烯丙基衍生物,其中某些衍生物是新颖的。