221656-34-4Relevant articles and documents
Convenient preparation of some N-substituted 1,2,3,4-tetrahydroisoquinolines lacking electron-donating substituents
Locher
, p. 2895 - 2911 (2007/10/03)
N,N-Bis(benzotriazol-1-ylmethyl)-β-phenylethylamines 3 are cyclised intramolecularly in conc. H2SO4 to the corresponding N-benzotriazol-1-ylmethyl-1,2,3,4-tetrahydroisoquinolines 4. The remaining benzotriazolyl-moiety can be replaced by nucleophiles, leading to N-substituted 1,2,3,4-tetrahydroisoquinolines 5-8.