A convenient, stereodivergent approach to the enantioselective synthesis of N-Boc-aminoalkyl epoxides
作者:Patricia Castejón、Mireia Pastó、Albert Moyano、Miquel A Pericàs、Antoni Riera
DOI:10.1016/0040-4039(95)00415-9
日期:1995.4
An efficient, stereodivergent and enantioselective synthesis of N-Boc-aminoalkyl epoxides has been developed. Starting from enantiomerically enriched antiN-diphenylmethyl-3-amino-1,2-diols, and after a change in the nitrogen protecting group, an intramolecular Mitsunobu reaction leads to the erythro aminoalkyl epoxides; a three step sequence consisting of protection of the primary alcohol, activation
A convergent, stereocontrolled synthesis of C2-symmetrical and pseudosymmetrical sulfur-tethered bis(amino alcohols)
作者:Núria Aguilar、Albert Moyano、Miquel A. Pericàs、Antoni Riera
DOI:10.1016/s0040-4039(99)00568-7
日期:1999.5
The totally enantiocontrolled preparation of C-2-symmetrical and pseudosymmetrical sulfur-tethered bis(amino alcohols) hom anti-3-amino-1,2-alkane diols is described. The key step in the synthetic procedure involves the use of triphenylsilanethiol as a sulfide or hydrogenosulfide equivalent in the regioselective nucleophilic ring opening of both anti- and syn-aminoalkyl epoxides. (C) 1999 Elsevier Science Ltd. All rights reserved.