Abstract
dl-1, 2-Methylenedioxy-8, 9, 10-trimethoxyaporphine (III) and dl-1, 2, 8, 9, 10-pentamethoxyaporphine (IV) were prepared and their characteristic ultraviolet absorption spectra (Fig. 1) were clarified. As by-products of the Pschorr reaction, benzylisoquinolinetype bases were isolated as dl-1-(2, 3, 4-trimethoxybenzyl)-2-methyl-6, 7-methylenedioxy-1, 2, 3, 4-tetrahydroisoquinoline (XVIII) and dl-1-(2, 3, 4-trimethoxybenzyl)-2-methyl-6, 7-dimethoxy-1, 2, 3, 4-tetrahydroisoquinoline (XXIV).
