Efficient nickel-catalyzed [2+2+2] cycloaddition of CO2 and diynes

被引：286

作者：

Louie, J ^{[1
]}

Gibby, JE ^{[1
]}

Farnworth, MV ^{[1
]}

Tekavec, TN ^{[1
]}

机构：

[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 51期

关键词：

D O I：

10.1021/ja027438e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A mild and general route for preparing 2-pyrones from CO2 and diynes is described. Under only 1 atm of CO2, excellent yields of pyrone are obtained using catalytic amounts of Ni(COD)2 and imidazolylidene ligand, IPr. In addition, stoichiometric reactions between the isolated complex Ni(IPr)2, diynes, and CO2 suggest that the pathway involves initial reaction with CO2 as the key step. Copyright © 2002 American Chemical Society.

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页码：15188 / 15189

页数：2

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