Expanding the Scope of C−H Amination through Catalyst Design
Journal of the American Chemical Society2004Vol. 126(47), pp. 15378–15379
Citations Over TimeTop 1% of 2004 papers
Abstract
Analysis of the mechanism for Rh-mediated C-H amination has led to the development of a remarkably effective dinuclear Rh catalyst derived from 1,3-benzenedipropionic acid. This unique complex, Rh2(esp)2, is capable of promoting both intra- and intermolecular C-H oxidation reactions, and in all cases is superior to Rh2(O2CtBu)4. For the first time, C-H insertion is described with urea and sulfamide substrates to give 1,2- and 1,3-diamine derivatives, respectively. In addition, intermolecular amination of benzylic and secondary C-H bonds is shown to proceed efficiently even under conditions in which the starting alkane is employed as the limiting reagent.
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