CONVENIENT PREPARATION OF SOMEN-SUBSTITUTED 1,2,3,4-TETRAHYDROISOQUINOLINES LACKING ELECTRON-DONATING SUBSTITUENTS
摘要:
N,N-Bis(benzotriazol-1-ylmethyl)-beta -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.
CONVENIENT PREPARATION OF SOMEN-SUBSTITUTED 1,2,3,4-TETRAHYDROISOQUINOLINES LACKING ELECTRON-DONATING SUBSTITUENTS
摘要:
N,N-Bis(benzotriazol-1-ylmethyl)-beta -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.
CONVENIENT PREPARATION OF SOME<i>N</i>-SUBSTITUTED 1,2,3,4-TETRAHYDROISOQUINOLINES LACKING ELECTRON-DONATING SUBSTITUENTS
作者:Cornelia Locher
DOI:10.1081/scc-100105660
日期:2001.1
N,N-Bis(benzotriazol-1-ylmethyl)-beta -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.