Synthesis of 1,2,3,4-tetrahydroquinolines and 1,2,3,4-tetrahydro- 1,6-naphthyridines by a directed lithiation reaction
作者:J.Norman Reed、Judy Rotchford、Dean Strickland
DOI:10.1016/s0040-4039(00)82173-5
日期:1988.1
(7), are easily converted in a one pot reaction sequence into the N- (tert-butoxycarbonyl)-1,2,3,4-tetrahydroquinolines (8), by directed ortho lithiation followed by reaction with 1- chloro-3-iodopropane, hence providing a new versatile quinoline ring nucleus synthesis. In an analogous reaction 2-N-(tert-butoxycarbonyl)- and an 2-N-(pivaloylamino) pyridine are converted to 1,2,3,4-tetrahydro-1,6-
N-(叔丁氧基羰基)苯胺(7)可以通过一锅反应顺序轻松地转化为N-(叔丁氧基羰基)-1,2,3,4-四氢喹啉(8),随后进行定向邻位锂化反应,然后与1-氯-3-碘丙烷反应,从而提供了一种新的通用喹啉环核合成方法。在类似的反应中,将2-N-(叔丁氧羰基)-吡啶和2-N-(新戊酰氨基)吡啶转化为1,2,3,4-四氢-1,6-萘啶。