Biradical mechanism of the 1,2-bond shift reaction catalysed by vitamin B12 coenzyme

被引：0

作者：

Amir-Ebrahimi, V ^{[1
]}

Rooney, JJ ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Chem, Belfast BT9 5AG, Antrim, North Ireland

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 164卷 / 1-2期

关键词：

B-12; coenzyme; spin-spin coupled biradical intermediates; pi-complexed half-reaction states;

D O I：

10.1016/S1381-1169(00)00265-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The vast amount of research on the B-12 coenzyme catalysed 1,2-bond shift reactions now provides strong evidence for the conclusion that spin-spin coupled biradical intermediates (R-....(.)[Co]) are responsible for the facile rearrangements involved via pi -complexed (charge-transfer complexed) half-reaction states. The biradical intermediates are also likely to be involved in stereospecific [2+2] activation of the substrates. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：291 / 295

页数：5

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