Convenient preparation of ytterbium(III) chalcogenolate complexes by insertion of ytterbium into chalcogen-chalcogen bonds. Application in the ring-opening of epoxides

被引：43

作者：

Dowsland, J ^{[1
]}

McKerlie, F ^{[1
]}

Procter, DJ ^{[1
]}

机构：

[1] Univ Glasgow, Dept Chem, Glasgow G12 8QQ, Lanark, Scotland

来源：

TETRAHEDRON LETTERS | 2000年 / 41卷 / 25期

关键词：

lanthanides; epoxides; sulfides; selenium and compounds; tellurium and compounds;

D O I：

10.1016/S0040-4039(00)00687-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Convenient conditions are reported for the preparation of ytterbium(III) chalcogenolate complexes by insertion of ytterbium metal into the chalcogen-chalcogen bond of disulfides, diselenides, and ditellurides. The resulting complexes have been found to transfer arylsulfanyl, -selenanyl, and -telluranyl groups to epoxides in a facile ring-opening reaction. The ytterbium(III) chalcogenolate complexes appear to perform a dual role in both activating the epoxide, due to their Lewis acidic nature, and supplying a nucleophile to the coordinated substrate. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：4923 / 4927

页数：5

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