Selective nitrolytic deprotection of N -BOC-amines and N -BOC-amino acids derivatives
作者:Paolo Strazzolini、Tiziana Melloni、Angelo G Giumanini
DOI:10.1016/s0040-4020(01)00900-0
日期:2001.10
configuration of the substrates and without affecting copresent Z and ester functions, with a remarkable selectivity towards acid sensitive t-butylesters. The obtained aminoacidsesters, isolated and characterized in the form of nitrates salts, proved to be suitable intermediates to be used in peptide synthesis.
Various nitro-substituted aryl and heteroaryl iodides undergo an iodine-magnesium exchange reaction when treated with PhMgCl leading to nitro-containing magnesium organometallics. These Grignard reagents display an excellent stability at temperatures below -40 degrees C and do not undergo electron-transfer reactions. They react as expected with various electrophiles.