Studies on tetrahydroisoquinolines. XXVII A synthesis of 3-hydroxyaporphines and 3-hydroxyhomoaporphines.
作者:HIROSHI HARA、HIROSHI SHINOKI、TOSHIYA KOMATSU、OSAMU HOSHINO、BUNSUKE UMEZAWA
DOI:10.1248/cpb.34.1924
日期:——
Acid treatment of o-quinol acetates (2a and 2b) derived from 5-hydroxy-1-benzyltetrahydroisoquinolines (3a and 3b) gave the corresponding 3-hydroxyaporphines (4a and 4b) in high yield.Similarly, the 3-hydroxyhomoaporphines (4c, 4d, and 4e) were excusively synthesized from the corresponding 1-phenethyl o-quinol acetates (2c, 2d, and 2e). On the other hand, no C-noraporphine was formed from the 1-aryl o-quinol acetate (2f); instead, the p-quinone (11) was generated.
对由5-羟基-1-苄基四氢异喹啉(3a和3b)衍生的o-喹酮醋酸酯(2a和2b)进行酸处理,得到了相应的3-羟基阿波啡啉(4a和4b),产率很高。同样,3-羟基同阿波啡啉(4c、4d和4e)则专门由相应的1-苯乙基 o-喹酮醋酸酯(2c、2d和2e)合成。另一方面,从1-芳基 o-喹酮醋酸酯(2f)未形成C-去阿波啡啉;相反,生成了对苯醌(11)。