Formation of a Room Temperature Stable FeV(O) Complex: Reactivity Toward Unactivated C鈥揌 Bonds

详细信息    查看全文

• 作者：Munmun Ghosh ; Kundan K. Singh ; Chakadola Panda ; Andrew Weitz ; Michael P. Hendrich ; Terrence J. Collins ; Basab B. Dhar ; Sayam Sen Gupta
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：July 9, 2014
• 年：2014
• 卷：136
• 期：27
• 页码：9524-9527
• 全文大小：254K
• ISSN：1520-5126

文摘

An Fe^V(O) complex has been synthesized from equimolar solutions of (Et₄N)₂[Fe^III(Cl)(biuret-amide)] and mCPBA in CH₃CN at room temperature. The Fe^V(O) complex has been characterized by UV鈥搗is, EPR, M枚ssbauer, and HRMS and shown to be capable of oxidizing a series of alkanes having C鈥揌 bond dissociation energies ranging from 99.3 kcal mol^鈥? (cyclohexane) to 84.5 kcal mol^鈥? (cumene). Linearity in the Bell鈥揈vans鈥揚olayni graph and the finding of a large kinetic isotope effect suggest that hydrogen abstraction is engaged the rate-determining step.