A Cascade Approach to Cyclic Aminonitrones: Reaction Discovery, Mechanism, and Scope
摘要:
Treatment of omega-epoxynitriles with hydroxylamine affords cyclic aminonitrones in a single step and with high stereoselectivity. The scope of this novel transformation was explored in a series of examples. The aminonitrone products were shown to be useful substrates for further selective elaboration.
A catalyticapproach to the titanocene-mediated radical cyclization of epoxy nitriles and epoxy carbonyl compounds to hydroxy ketones and diols is described. The reaction is sensitive to the substitution pattern of the catalyst and especially useful for the preparation of cyclobutanones. It can also be used for nitrile grouptransfer.
A Cascade Approach to Cyclic Aminonitrones: Reaction Discovery, Mechanism, and Scope
作者:Rojita Sharma、Paul G. Bulger、Michael McNevin、Peter G. Dormer、Richard G. Ball、Eric Streckfuss、James F. Cuff、Jingjun Yin、Cheng-yi Chen
DOI:10.1021/ol9010147
日期:2009.8.6
Treatment of omega-epoxynitriles with hydroxylamine affords cyclic aminonitrones in a single step and with high stereoselectivity. The scope of this novel transformation was explored in a series of examples. The aminonitrone products were shown to be useful substrates for further selective elaboration.