The synthesis and reactions of 4-(2- and 3-thienyl)-tetrahydroisoquinolines
作者:David E. Tupper、Terrence M. Hotten、William G. Prowse
DOI:10.1002/jhet.5570330420
日期:1996.7
derivatives substituted in the 4-position by either a 2- or 3-substitutedthiophene ring have been synthesised. Simple electrophilic substitutionreactions of these systems take place as expected in the α-position of the thiophene ring. Metalation reactions are more complex and take place at the benzylic 4-position of the tetrahydroisoquinoline nucleus in the case of the 2-substituted thiophene derivatives