Formation of<i>N</i>,<i>N</i>′-Disubstituted Methanediamine Derivatives from Hexamethyldisilazane and Aldehydes via Stepwise Reactions
作者:Kozaburo Nishiyama、Masaki Saito、Makoto Oba
DOI:10.1246/bcsj.61.609
日期:1988.2
The ZnCl2-catalyzed reaction of aldehydes with hexamethyldisilazane (HMDS) resulted in the formation of N,N′-disubstituted methanediamines, which were found to be formed stepwisely via 1 : 1- and 1 : 2-adducts of HMDS and aldehydes.
A catalytic amount of copper(II) trifluoromethanesulfonate (Cu(OTf)(2)) in the presence of trimethylchlorosilane (TMSCl) effectively promoted the aminomethylation of indoles bearing a variety of functional groups kith a N-sifyl-N,O-acetal in good to excellent Yields. (C) 2002 Elsevier Science Ltd. All rights reserved.