SmI<sub>2</sub>-Mediated Reduction of <i>α</i>-Functionalised Amides: Highly Enantiospecific Access to an Atropisomeric Amide
作者:Adam D. Hughes、Nigel S. Simpkins
DOI:10.1055/s-1998-1838
日期:1998.9
SmI2 or SmI2-LiCl mixtures can be used to reduce α-functionalised amides in yields of up to 85% depending upon the amide structure. The method has been applied to the synthesis of an atropisomeric anilide system in highly enantioenriched form, starting with (S)-O-acetyl lactic acid.
Atropisomeric amides: stereoselective enolate chemistry and enantioselective synthesis via a new SmI2-mediated reduction
作者:Adam D. Hughes、David A. Price、Nigel S. Simpkins
DOI:10.1039/a901154d
日期:——
The use of certain types of atropisomeric amides, incorporating an N-MEM-ortho-tert-butylaniline group, for stereoselective reactions, has been explored. Enolate reactions of these systems are highly diastereocontrolled, and enantiomerically enriched starting materials can be obtained, starting from lactic acid, via a new SmI2 mediated reduction process.