Asymmetric transfer of nitrenes catalyzed by chiral dirhodium(II) using aromatic sulfamate esters
作者:Corinne Fruit、Paul Müller
DOI:10.1016/j.tetasy.2004.01.015
日期:2004.3
insertions of aromatic sulfamate esters into activated C–H bonds have been achieved via in situ generated phenyliodinanes in the presence of PhI(OAc)2, MgO, and chiral Rh(II) catalysts. The optimal results were obtained with [Rh2(S)-nttl}4] and [Rh2(R)-ntv}4] as catalysts with up to 52% ee. In contrast, phenylsulfamates with allylic ortho-substituents reacted via intramolecular aziridination rather