申请人:Shirai Masashi
公开号:US20060069273A1
公开(公告)日:2006-03-30
The compounds represented by the formula (I) are produced by reacting benzene compound of the formula (IV) or (V) with alkenylidene diacetate of the formula (VI) in the presence of a catalyst comprising one or more members selected from (a) halogenated boron compounds, (b) triflate compounds of Group 11 elements, (c) halogenated compounds of Group 12 elements, and
(d) triflate and halogenated compounds of tin and atomic numbers 58 and 66 to 71 elements.
R
1
, R
2
=H or C1-C10 alkyl group A=Substituted phenyl group corresponding to a compound of formula (IV) or (V),
R
3
, R
4
=H or C1-C4 alkyl group, m=0 or 1-4, n=1 to 5, k=1 or 2.
式(I)所表示的化合物是通过在催化剂的存在下,将式(IV)或( V )的苯化合物与式(VI)的烯基亚乙酸酯反应而产生的,所述催化剂包括从以下一种或多种成员中选择的:(a)卤化硼化合物、(b)第11族元素的三氟甲烷磺酰基化合物、(c)第12族元素的卤化化合物、以及(d)锡和原子序数为58和66至71的元素的三氟甲烷磺酰基和卤化化合物。其中,R1、R2为H或C1-C10烷基,A为对应于式(IV)或(V)的取代苯基,R3、R4为H或C1-C4烷基,m为0或1-4,n为1至5,k为1或2。