Reactions of 3,4-dihydroisoquinolines and dihydrothieno[3,2-c]pyridines with benzyne

Cyanomethyl-substituted tetrahydroisoquinolines and tetrahydrothieno[3,2-c]pyridines were synthesized by multicomponent reaction of the dihydro analogues of aforesaid systems with benzyne and acetonitrile. The products obtained relate to alkaloids of isoquinoline family of 1,2,3,4-tetrahydro level. © 2017