Visible-Light-Promoted Tandem Annulation of <i>N</i>-(<i>o</i>-Ethynylaryl)acrylamides with CH<sub>2</sub>Cl<sub>2</sub>
作者:Yu Liu、Ren-Jie Song、Shenglian Luo、Jin-Heng Li
DOI:10.1021/acs.orglett.7b03561
日期:2018.1.5
A novel tandem annulation of N-(o-ethynylaryl)acrylamides, with CH2Cl2 as a one-carbon unit, for the divergent synthesis of cyclopenta[c]quinolin-4(5H)-ones and benzo[j]phenanthridin-6(5H)-ones, which relies on the substitution effect of the 2 position of the acrylamide moiety, is described. Promoted by the visible-light photoredox catalysis, this reaction allows the formation of multiple chemical