Method for preparing 7,8-dichloro-1,2,3,4-tetrahydroisoquinoline and N-chloroethyl-, N-bromoethyl- or N-hydroxyethyl-2,3-dichlorobenzylamine intermediate

摘要

A method for preparing 1,2,3,4-tetrahydroisoquinolines comprising heating N-halo or hydroxyethyl-N-benzylamines in an aluminum chloride melt at 160 DEG -210 DEG .