Mechanism of methylation of nucleoside sugar hydroxyl groups by diazomethane in the presence of stannous chloride
作者:Lech Dudycz、Andrzej Kotlicki、David Shugar
DOI:10.1016/s0008-6215(00)80988-x
日期:1981.4
Abstract Diazomethane rapidly reacts with SnCl 2 in methanol to give MeCl and Sn(OMe) 2 , both of which were isolated and identified. This reaction is the initial step in the apparent SnCl 2 - 2H 2 O-catalysed methylation of nucleosides by diazomethane. The actual catalyst, Sn(OMe) 2 , readily reacts with Bronsted acids, with exchange of ligands. For ribofuranosyl nucleosides, Sn 2+ binds to site(s)