Photochemical Myers-Saito and C2-C6 cyclizations of enyne-Allenes:: Direct detection of intermediates in solution

被引：27

作者：

Schmittel, M

Mahajan, AA

Bucher, G

机构：

[1] Univ Siegen, FB 8 Chem Biol, D-57068 Siegen, Germany

[2] Ruhr Univ Bochum, Lehrstuhl Organ Chem 2, D-44801 Bochum, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 15期

关键词：

D O I：

10.1021/ja044890k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Several examples of the photochemical Myers-Saito and C2-C6 cyclization of enyne-allenes are described. The presence of a triplet sensitizing unit at the allene terminus and laser flash photolysis results suggest that the cyclization proceeds along the triplet manifold. An intermediate with τ = 33 ± 5 μs was tentatively assigned to a singlet biradical. Copyright © 2005 American Chemical Society.

引用

页码：5324 / 5325

页数：2

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