Three-Component Coupling Reaction and Cyclization of <i>N</i>-Tosylimines and TMS-Substituted Propiolate Mediated by DABCO
作者:Yuji Matsuya、Kousuke Hayashi、Akiho Wada、Hideo Nemoto
DOI:10.1021/jo702649q
日期:2008.3.1
[GRAPHICS]A new three-component coupling reaction of methyl 3-trimethylsilylpropiolate, N-tosylimine, and tosylamide mediated by DABCO was developed. This reaction was based on the consecutive alpha- and beta-activation method of propiolate involving intramolecular silyl migration previously developed by our group. On the basis of these results, a new cyclization reaction was designed to find a chrome ne-formin g reaction utilizing salicyl N-tosylimine as a bifunctional substrate.