J. Thierry et al., 2-PHENYL ISOPROPYL AND T-BUTYL TRICHLOROACETIMIDATES - USEFUL REAGENTS FOR ESTER PREPARATION OF N-PROTECTED AMINO-ACIDS UNDER NEUTRAL CONDITIONS, Tetrahedron letters, 39(12), 1998, pp. 1557-1560
2-Phenylisopropyl and t-butyl trichloroacetamidates 1 and 2 are useful
reagents for the esterification of N-protected aminoacids under mild
neutral conditions. In the case of hydroxyl-containing amino acids, di
alkylation occurs but no selectivity could be obtained. (C) 1998 Publi
shed by Elsevier Science Ltd. All rights reserved.