Synthetic Communications p. 2895 - 2911 (2001)
Update date:2022-09-26
Topics:
Locher
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.
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Doi:10.1021/acs.joc.5b00579
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