Preparation of dicationic chalcogenolate-bridged diruthenium complexes and their dual catalytic activity toward reactions between propargylic alcohols and acetone

被引：38

作者：

Onodera, G

Matsumoto, H

Nishibayashi, Y ^{[1
]}

Uemura, S

机构：

[1] Kyoto Univ, Dept Energy & Hydrocarbon Chem, Nishikyo Ku, Kyoto 6158510, Japan

[2] Univ Tokyo, Inst Engn Innovat, Bunkyo Ku, Tokyo 1138656, Japan

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 24期

关键词：

D O I：

10.1021/om050831j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Dicationic chalcogenolate-bridged diruthenium complexes have been newly prepared by reactions of the neutral diruthenium dichloride complexes [CP*RUCl(mu(2)-YR)](2) (y = S, Se, Te; R = Me, Pr-i) with 2 equiv of silver trifluoromethanesulfonate. Reactions of propargylic alcohols with acetone in the presence of a catalytic amount of these dicationic complexes afford the corresponding hexadienones in moderate to good yields, in sharp contrast to the formation of gamma-ketoalkynes when neutral or monocationic diruthenium complexes are employed as catalysts.

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页码：5799 / 5801

页数：3

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