摘要
研究了用２．４－戊二酮钯－叔膦体系催化丁二烯和甲醇调聚合反应，结果表明： Ｐｄ（ａｃａｃ）２－ＰＲ３体系是有效的丁二烯和甲醇调聚合反应的催化剂．考察了四种有代 表性的叔膦 ＰＲ３（Ｐ＝Ｐｈ－，ＰｈＯ－，Ｐｒｉ－，Ｂｕｎ－）与 ２，４－戊二酮钯组成体系的催 化作用，发现丁二烯的转化率、调聚产物的选择及两个调聚产物的分配比例同催化剂 体系中 ＰＲ ３的碱性和空间角有关。
Telomerization of butadiene and methanol catalyzed by the homogeneous catalyst systems consisting of palladium 2,4-pentadionate-tertiary phosphines have been researched. The results show that Pd(acac) 2-PR3 are efficacious catalytic systems for telomerization reactiono The catalysis of the system containing palladium 2,4-pentadionate with four PR3, where R=Ph-,PhO-, Pri-, Bun-,has been investigated respectively. It is found that the conversion of butadiene, the selectivity of telomer and ratio between two tolomers can be regulated by basicity and cone -angle of PR3.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1991年第6期647-650,共4页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目
关键词
二烯烃
丁二烯
调聚
均相催化
Telomerization, butadiene(P)
homogeneous catalysis
