Asymmetric synthesis of α-amino acid derivatives via an electrophilic amination of chiral amide cuprates with Li t-butyl-N-tosyloxycarbamate
作者:Nan Zheng、Joseph D. Armstrong、J.Christopher McWilliams、R.P. Volante
DOI:10.1016/s0040-4039(97)00477-2
日期:1997.4
The utility of lithium t-butyl-N-tosyloxycarbamate (LiBTOC) as a (+)NHBOC synthon in highly diastereoselective reactions with chiral cis-aminoindanol derived amide cuprates is described. The diastereoselectivities of these reactions ranged from 96% to greater than 99%. The subsequent transformation of these adducts to alpha-amino acids ir also described (C) 1997 Elsevier Science Ltd.