Efficient Synthesis of 2-(2-Aminophenyl)-2,3-dihydropyridin-4(1H)-ones Based on a Cyclization/Ring Cleavage Procedure
作者:Vahuni Karapetyan、Satenik Mkrtchyan、Gnuni Karapetyan、Alexander Villinger、Ashot Saghiyan、Tariel V. Ghochikyan、Peter Langer
DOI:10.1002/hlca.201100130
日期:2011.11
(Benzyloxycarbonyl)‐protected 3,4‐benzo‐7‐hydroxy‐2,9‐diazabicyclo[3.3.1]non‐7‐enes were prepared by one‐pot cyclizations of 1,3‐bis(silyl enol ethers) with quinazolines. Subsequent hydrogenation resulted in one‐pot deprotection and rearrangement to give 2‐(2‐aminophenyl)‐2,3‐dihydropyridin‐4(1H)‐ones.