Regioselective [2+2] and [4+2] cycloaddition reactivity in an asymmetric niobium(bisimido) moiety towards unsaturated organic molecules

被引：20

作者：

Obenhuber, A. H. ^{[1
]}

Gianetti, T. L. ^{[1
]}

Bergman, R. G. ^{[1
]}

Arnold, J. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 07期

关键词：

C-H ACTIVATION; ALPHA; BETA-UNSATURATED IMINES; IMIDOZIRCONOCENE COMPLEXES; CATALYTIC CARBOAMINATION; BENZENE ACTIVATION; BOND ACTIVATION; IMIDO COMPLEX; ALKYNES; HYDROAMINATION; GENERATION;

D O I：

10.1039/c4cc07851a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The asymmetric bis-imido structure and the lability of the diethyl ether linkage in complex 1 provide a niobium complex that undergoes regio-selective [4+2] cycloaddition reactions with an alpha,beta-unsaturated ketone and cycloaddition reactions that involve bond formation to the MAD ligand (MonoAzabutaDiene). DFT calculations have been used to support an initial azametallacyclobutene intermediate in the alkyne reaction.

引用

页码：1278 / 1281

页数：4

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