Organocatalysed Enantioselective Synthesis of Chromenes, Thiochromenes and 1, 2-dihydroquinolines consisting One chapter, which includes three sections. Section-I describes Organocatalytic oxa-Michael additions to access functionalized chromenes, Section-II explains Organocatalytic thio-Michael reactions to access functionalized thiochromenes and section III elaborated Organocatalytic aza-Michael reactions to access functionalized 1,2-dihydro quinolines.