Rhenium Carbyne and η2-Vinyl Complexes from One-Pot Reactions of ReH5(PMe2Ph)3 with Terminal Alkynes

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• 作者：Jiangxi Chen ; Guomei He ; Herman Ho-Yung Sung ; Ian Duncan Williams ; Zhenyang Lin ; Guochen Jia
• 刊名：Organometallics
• 出版年：2010
• 出版时间：June 28, 2010
• 年：2010
• 卷：29
• 期：12
• 页码：2693-2701
• 全文大小：898K
• 年卷期：v.29,no.12(June 28, 2010)
• ISSN：1520-6041

文摘

Treatment of the rhenium polyhydride complex ReH₅(PMe₂Ph)₃ with HC≡CR (R = Ph, SiMe₃, (CH₂)₄Me) in the presence of 2.2 equiv of HCl produces a mixture of the carbyne complexes Re(≡CCH₂R)Cl₂(PMe₂Ph)₃ and the η²-vinyl complexes Re(η²-CH₂CR)Cl₂(PMe₂Ph)₃. When HC≡CC(OH)Ph₂ was used, the reaction gave the carbyne complexes Re(≡CCH═CPh₂)Cl₂(PMe₂Ph)₃ and Re(≡CCH₂C(OH)Ph₂)Cl₂(PMe₂Ph)₃ along with the η²-vinyl complex Re(η²-CH₂CC(OH)Ph₂)Cl₂(PMe₂Ph)_3.