Synthesis of novel benzo[h][1,6]naphthyridine derivatives from 4-aminoquinoline and cyclic β-ketoester
作者:Raghunath B. Toche、Balasaheb P. Pagar、Ravindra R. Zoman、Goraksha B. Shinde、Madhukar N. Jachak
DOI:10.1016/j.tet.2010.04.085
日期:2010.7
of 2,8-dichloroquinolin-4-amine 4 and 4,5,7-trichloro-3-(2-chloroethyl)-2-methylbenzo[h][1,6]naphthyridine 8 as novel class of building blocks. Also describes the regioselective SNAr reactions of 2,4,8-trichloroquinoline 2 on C2 and C4 positions with azide, similarly SNAr reactions of benzo[h][1,6]naphthyridine 8 at C4, C5 positions, and SN2 reactions on C3-(2-chloroethyl) side chain with nucleophiles
本文描述了2,8-二氯喹啉-4-胺的合成4和4,5,7-三氯-3-(2-氯乙基)-2-甲基苯并〔ħ ] [1,6]二氮杂萘8是新颖的类建筑模块。还描述了2,4,8-三氯喹啉2在C 2和C 4位上与叠氮化物的区域选择性S N Ar反应,类似地在C 4,C 5时苯并[ h ] [1,6]萘啶8的S N Ar反应位置和C 3上的S N 2反应-(2-氯乙基)侧链与亲核试剂(例如芳族伯胺,甲醇盐/乙醇盐和叠氮化物)在不同温度下的分布。