1973 年 93 巻 5 号 p. 648-653
N-Benzoyl-, N-acetyl-, and N-ethoxycarbonyl-imino-3, 4-dihydroisoquinolinium betaines were prepared, and their chemical and spectral properties were compared with those of N-arylimino-3, 4-dihydroisoquinolinium betaines and N-acyliminoisoquinonium betaines.