申请人:——
公开号:US20020107422A1
公开(公告)日:2002-08-08
There are disclosed a composition comprising
(E)-1,4-dibromo-2-methyl-2-butene and
(Z)-1,4-dibromo-2-methyl-2-butene, wherein the ratio of the E isomer to the total amount of the E and Z isomers is 0.9 or more; a process for producing the same and a process using the same to produce an allyl halide compound of formula (1):
1
wherein X denotes a bromine atom,
Y denotes an ArS(O)
2
group or an RCOO group,
wherein Ar denotes an aryl group which may be substituted and R denotes a hydrogen atom, a lower alkyl group or an aryl group which may be substituted, and
the wavy line means that the derivative is a mixture of an E or Z geometrical isomer.
本发明涉及一种包含(E)-1,4-二溴-2-甲基-2-丁烯和(Z)-1,4-二溴-2-甲基-2-丁烯的组合物,其中E异构体与E和Z异构体的总量之比为0.9或更高;一种生产该组合物的方法以及使用该组合物生产化合物的方法,所述化合物的分子式为(1):其中X代表溴原子,Y代表ArS(O)2基团或RCOO基团,其中Ar代表可能被取代的芳基,R代表氢原子、低碳烷基或可能被取代的芳基,波浪线表示衍生物是E或Z几何异构体的混合物。