Facile Syntheses of Fluorine-Containing Pyrazol[4,3-h]quinolines and 1H-1,4-Diazepino[6,5-h]quinolines
作者:Etsuji Okada、Norikado Tsukushi、Naofumi Shimomura
DOI:10.1055/s-2000-8234
日期:——
N,N-Dimethyl-5,7-bis(trifluoroacetyl)-8-quinolylamine underwent an aromatic nucleophilic N - N exchange reaction with hydrazines followed by cyclocondensation to afford the corresponding fluorine-containing 1H- and 2H-pyrazolo[4,3-h]quinolines in excellent yields. This reaction could be extended to the synthesis of 1H-1,4-diazepino[6,5-h]quinolines using 1,2-ethylenediamine and 1,2-phenyldiamines.
N,N-二甲基-5,7-双(三氟乙酰基)-8-喹啉胺与肼发生芳香族亲核 N - N 交换反应,然后进行环缩合,得到相应的含氟 1H- 和 2H- 吡唑并[4,3-h]喹啉类化合物,收率极高。该反应可扩展到使用 1,2-乙二胺和 1,2-苯基二胺合成 1H-1,4-二氮杂卓[6,5-h]喹啉。