Hydration of Nitriles to Amides by Thiolate-Bridged Diiron Complexes

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• 作者：Peng Tong ; Dawei Yang ; Yang Li ; Baomin Wang ; Jingping Qu
• 刊名：Organometallics
• 出版年：2015
• 出版时间：July 27, 2015
• 年：2015
• 卷：34
• 期：14
• 页码：3571-3576
• 全文大小：406K
• ISSN：1520-6041

文摘

A series of nitrile-coordinating complexes [Cp*Fe(渭-SEt)RCN]₂[PF₆]₂ (1, R = alkyl, aryl, vinyl, amine) have been obtained by the reaction of [Cp*Fe(渭-SEt)MeCN]₂[PF₆]₂ (1a) with various nitriles in acetone. Complexes 1 can realize the hydration of a nitrile ligand under ambient conditions. Complexes [Cp*Fe(渭-SEt)₂(渭-畏¹:畏¹-NH(O)CR)FeCp*][PF₆] (2) were successfully isolated as intermediates during the hydration process, with 2b and 2e (R = CH₂鈺怌H and Et₂N) being characterized by spectrometry and X-ray crystallography. Treatment of 2 with HBF₄路Et₂O in the presence of nitriles released corresponding amides 3. At the same time, the structural features of the [Fe₂S₂] scaffold were retained. These results confirmed that the hydration of nitriles was realized by cooperative interaction on diiron centers.