5-Chloro-8-nitro-1-naphthoyl (NNap): A Selective Protective Group for Amines and Amino Acids
作者:Asmaa Habib、José J. Garrido-González、Estela Sánchez-Santos、Irene Boya del Teso、Francisca Sanz、Victoria Alcázar、Ángel L. Fuentes de Arriba、Joaquín R. Morán
DOI:10.1021/acs.orglett.3c01334
日期:2023.6.9
as a protective group for amines is described. Protection is carried out with an auxiliary amine or under mild Schotten-Baumann conditions in high yield (>86%), while deprotection can be achieved easily under gentle reducing conditions due to the large steric tension between C-1 and C-8 naphthalene substituents. The reaction has been successfully tested in dipeptide synthesis and amino alcohols protection