论文部分内容阅读
研究了乙酸镍/有机氯化铝催化α-烯烃(1-C_n~z,n=3,4,6,7,8,10)的齐聚反应。1-C_B~z齐聚转化率、烯烃双键位置移动(简称异构反应)、转化率和二聚物线性率等随n的增加而减小;二聚选择性随n增加而增加。在1-C_n~=齐聚物中有C_(n+2)~=烯烃存在,加氢后则生成烷烃C_(n+2)~0的两种异构体,支链的i-C_(n+2)~0和正构的n-C_(n+2)~0。i-C_(n+2)~0/n-C_(n+2)~0也随着n增加而增大。C_(n+2)~=的存在支持了金属氢化物催化烯烃齐聚反应的机理。
The oligomerization of α-olefin (1-C_n ~ z, n = 3,4,6,7,8,10) catalyzed by nickel acetate / aluminum chloride was studied. 1-C_B ~ z oligomerization conversion, position shift of olefinic double bond (referred to as isomerization), the conversion rate and dimer linearity rate decreased with the increase of n; dimerization selectivity increased with n increasing. Cn (n + 2) ~ = olefins are present in 1-C_n ~ = oligomers. Hydrogenation results in the formation of two isomers of alkanes C_ (n + n + 2) ~ 0 and normal n-C_ (n + 2) ~ 0. i-C_ (n + 2) ~0 / n-C_ (n + 2) ~ 0 also increases as n increases. The existence of C_ (n + 2) ~ = supports the mechanism of metal hydride catalyzed oligomerization of olefins.