N-Heterocyclic carbene-catalyzed tandem aza-benzoin/Michael reactions: on site reversal of the reactivity of N-Boc imines
作者:Ke-Jia Wu、Gong-Qiang Li、Yi Li、Li-Xin Dai、Shu-Li You
DOI:10.1039/c0cc01769h
日期:——
A tandem NHC-catalyzed aza-benzoin/Michael reaction has been developed as a method to efficiently produce dihydroindenones and pyrrolidinone-containing tricycles. The novel reaction pattern involves tert-butyl aryl(tosyl)methylcarbamates reacting as both electrophile and nucleophile on the same carbon.
Optically active α,β-diaminophosphonic acid derivatives were obtained from the catalytic enantioselective Mannich reaction of phosphoglycine Schiff bases with N-Boc-imines, generated in situfromα-amidosulfones.