title: One-pot synthesis of benzo[f]quinolin-3-ones and benzo[a]phenanthridein-5-ones by the photoanuulation of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1-ones to phenylacetylene.
abstract: The one-pot synthesis of benzo[f]quinolin-3-ones and benzo[a]phenanthridein-5-ones was achieved by the inter- and intramolecular photoannulation of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1-ones with phenylacetylene or tethered phenylacetylene. The reactions were proceeded by photoaddition of 6-chloropyridin-2-ones and 3-chloroisoquinolin-1-ones to phenylacetylene to give the chlorine-substituted stilbenoids, and then 6π electrocyclization of the stilbenoids and oxidation aromatization to afford the polycyclic products.
authors: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China.
authors: Ren
authors: R
authors: Wang
authors: Shen-Ci
authors: SC
authors: Lu
authors: Yi-Ming
authors: YM
authors: Zhang
authors: Zong-jun
authors: ZJ
authors: Shi
authors: Wei
authors: W
authors: Zhang