Zirconium catalyzed alkyne dimerization for selective Z-enyne synthesis

被引：47

作者：

Platel, Rachel H. ^{[1
]}

Schafer, Laurel L. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 86期

基金：

加拿大自然科学与工程研究理事会;

关键词：

TERMINAL ALKYNES; LINEAR DIMERIZATION; TERT-BUTYLACETYLENE; COMPLEXES; OLIGOMERIZATION;

D O I：

10.1039/c2cc35913h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The regioselective head-to-head dimerization of alkynes is catalyzed by a dibenzyl tethered bis(ureate) zirconium precatalyst with aniline as an additive. This system also gives outstanding stereoselectivity to furnish Z-enynes in high yields. A dinuclear reactive intermediate has been characterized, which provides a potential mechanistic rationale for the unexpected regio- and stereoselectivity in this catalytic system.

引用

页码：10609 / 10611

页数：3

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