Synthesis and Diels−Alder Reactions of 4-Vinylimidazoles
作者:Carl J. Lovely、Hongwang Du、H. V. Rasika Dias
DOI:10.1021/ol015687m
日期:2001.5.1
[GRAPHICS]The synthesis of several 4-vinylimidazoles via Stille cross-coupling reactions of the corresponding protected 4-iodoimidazoles with tributylvinylstannane is described, These heterocyclic dienes are shown to be effective partners in the Diels-Alder reaction, providing adducts in good yield acid exhibiting useful levels of isomer selectivity and stereoselectivity (endo/exo).