CICERO, DANIEL;VARELA, OSCAR;LEDERKREMER, ROSA M. DE, TETRAHEDRON., 46,(1990) N, C. 1131-1144
作者:CICERO, DANIEL、VARELA, OSCAR、LEDERKREMER, ROSA M. DE
DOI:——
日期:——
Synthesis of furanoid and pyranoid derivatives of 6-deoxy-4-thio--galactose
作者:Daniel Cicero、Oscar Varela、Rosa M. De Lederkremer
DOI:10.1016/s0040-4020(01)86679-5
日期:1990.1
reagents. The thiol group at C-4 was introduced by nucleophilic substitution of a tosylate by thiocyanate followed by reduction or alkaline methanolysis of the thiocyano group. A by-product of the latter reaction was characterized as a monothiolcarbonate derivative (), whose conformation was studied by molecular mechanics calculations. Acetolysis of methyl 6-deoxy-4-thio-α--galactopyranoside () afforded