Quinolizidines. XXX. A Ready Access to the Dibenzo(a,f)quinolizidine Ring System from 1,2,3,4-Tetrahydroquinoline.
作者:Masashi OHBA、Yoko SHINBO、Mitsuhiro TODA、Tozo FUJII
DOI:10.1248/cpb.40.2543
日期:——
An alternative synthesis of 9, 10-dimethoxydibenzo[a, f]quinolizidine (16) has been accompliched throuth a route including mercuric acetate-edetic acid oxidation of a benzene-fused piperidine. The route started with an initial condensation of 1, 2, 3, 4-tetrahydroquinoline (5) with 3, 4-dimethoxyphenacyl brimide (6) and proceeded through the amino ketone (7), amino alcohol (8), lactam alcohol (9), N-substituted dihydrocarbostyril (10), and quaternary iminium salt (11 or 15).
一种9, 10-二甲氧基二苯并[a, f]喹啉啶(16)的替代合成已通过一种包括醋酸汞-乙二酸氧化的路线完成,该路线从一种苯环融合的哌啶开始。该路线首先是1, 2, 3, 4-四氢喹啉(5)与3, 4-二甲氧基苯乙酰胺(6)进行初始缩合,然后经过氨基酮(7)、氨基醇(8)、内酰胺醇(9)、N-取代的二氢烯基苯(10)以及季铵盐(11或15)进行反应。