Cobalt-catalyzed [2+2] cycloaddition

被引：69

作者：

Treutwein, Jonas ^{[1
]}

Hilt, Gerhard ^{[1
]}

机构：

[1] Univ Marburg, Fachbereich Chem, D-35043 Marburg, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 36期

关键词：

alkenes; alkynes; cobalt; cycloaddition;

D O I：

10.1002/anie.200801778

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Three's a charm, but four's not half bad either: A simple cobalt-diphosphine complex facilitates the synthesis of cyclobutene derivatives through the chemoselective transformation of strained five-membered unsaturated rings with internal alkynes (see scheme). This atom-efficient, intermolecular reaction generates polycyclic products in excellent yields and with excellent exo selectivity. dppp=1,3- bis(diphenylphosphanyl)propane. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：6811 / 6813

页数：3

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