Synthesis of 7-hydroxy-6-alkoxy derivatives of 3,4-dihydroisoquinoline by ritter reaction
摘要:
1-Substituted 6,7-dialkoxy-3,4-dihydroisoquinolines containing in the position 7 of the isoquinoline ring propoxy- or butoxy groups in the course of maintaining in the concentrated sulfuric acid are converted into 1-substituted 6-alkoxy-7-hydroxy-3,4-dihydroisoquinolines.