Directed Metal (Oxo) Aliphatic C–H Hydroxylations: Overriding Substrate Bias
摘要:
The first general strategy for a directing effect on metal (oxo)-promoted C-H hydroxylations is described. Carboxylic acid moieties on the substrate overcome unfavorable electronic, steric, and stereoelectronic biases in C-H hydroxylations catalyzed by the non-heme iron complex Fe(PDP). In a demonstration of the power of this directing effect, C-H oxidation is diverted away from an electronically favored C-1 H abstraction/rearrangement pathway in the paclitaxel framework to enable installation of C-2 oxidation in the naturally occurring oxidation state and stereoconfiguration.
[EN] BROMOHEXAHYDROINDANONE COMPOUNDS, PREPARATION METHOD FOR SAME, AND USES THEREOF<br/>[FR] COMPOSÉS DE BROMOHEXAHYDROINDANONE, LEUR PROCÉDÉ DE PRÉPARATION ET LEURS UTILISATIONS<br/>[ZH] 一类溴代六氢茚酮类化合物及其制备方法和用途