Novel approach to synthesis of substituted 3-aminoquinolines from nitroarenes and protected ethyl aminocrotonate
作者:Robert Bujok、Andrzej Kwast、Piotr Cmoch、Zbigniew Wróbel
DOI:10.1016/j.tet.2009.11.060
日期:2010.1
The addition of mono- and dianions of ethyl N-pivaloyl-3-aminocrotonate to substituted nitroarenes, followed by action of silylating or acylating agent, leads to 3-aminoquinoline carboxylic acid derivatives. Hydrolysis and decarboxylation of the latter, carried out efficiently under relatively mild conditions, afford 3-aminoquinolines diversely substituted in the benzo-fused ring.
将N-新戊酰基-3-氨基巴豆酸乙酯的单和二价阴离子加到取代的硝基芳烃上,然后甲硅烷基化或酰化剂作用,产生3-氨基喹啉羧酸衍生物。在相对温和的条件下有效地进行后者的水解和脱羧,得到在苯并稠合的环中被不同取代的3-氨基喹啉。