Thienoquinolines. Part 6. Reaction of 2-chloro-3-(1,2-dibromoethyl)-quinolines with thiourea: a convenient synthesis of thieno[2,3-b]-quinolines
Abstract
The reactions of 2-chloro-3-(1,2-dibromoethyl)quinolines (2) with thiourea in protic solvents affords thieno-[2,3-b]quinolines (3) in high yields.