Enantioselective synthesis of non-proteinogenic 2-arylallyl-α-amino acids via Pd/In catalytic cascades
作者:Ronald Grigg、Shaun McCaffrey、Visuvanathar Sridharan、Colin W.G. Fishwick、Colin Kilner、Stewart Korn、Kevin Bailey、John Blacker
DOI:10.1016/j.tet.2006.09.098
日期:2006.12
An efficient synthesis of both R- and S-enantiomers of 2-arylallyl-alpha-amino acids via a diastereoselective Pd/In mediated catalytic allylation of chiral N-sulfinyl-alpha-imino esters is described. The potential for further enhancement of molecular complexity and creating contiguous chiral centres by interfacing these processes with catalytic cyclisation-anion capture methodology is demonstrated. (c) 2006 Elsevier Ltd. All rights reserved.