Remarkable Effect of Valence Electrons in Thiolato-Bridged Diruthenium Complexes toward Catalytic Dimerization of 伪-Methylstyrenes

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• 作者：Yoshihiro Miyake ; Taichi Moriyama ; Yoshiaki Tanabe ; Gen Onodera ; Yoshiaki Nishibayashi
• 刊名：Organometallics
• 出版年：2011
• 出版时间：November 14, 2011
• 年：2011
• 卷：30
• 期：21
• 页码：5972-5977
• 全文大小：402K
• 年卷期：v.30,no.21(November 14, 2011)
• ISSN：1520-6041

文摘

The dicationic diruthenium complex 1c (Ru^III鈥揜u^III) catalytically promotes the dimerization of 伪-methylstyrenes into the corresponding acyclic dimers, while the use of the mixed-valence diruthenium complex (Ru^III鈥揜u^IV) generated from 1c and cinnamyl chloride as an active catalyst affords the corresponding indanes via cyclization of the acyclic dimers. The selectivity of the catalytic dimerization of 伪-methylstyrenes depends on the nature of electrophilicity due to valence electrons in the diruthenium cores between Ru^III鈥揜u^III and Ru^III鈥揜u^IV.