Three-component coupling reactions of isoquinolines, dimethyl acetylenedicarboxylate and indoles: a facile synthesis of 3-indolyl-1,2-dihydro-2-isoquinolinyl-2-butenedioate
作者:J.S. Yadav、B.V. Subba Reddy、Nagendra Nath Yadav、Manoj K. Gupta
DOI:10.1016/j.tetlet.2008.02.129
日期:2008.4
of isoquinolines, dimethylacetylenedicarboxylate (DMAD) and indoles is achieved for the first time to produce dimethyl (E)-2-[1-(1H-3-indolyl)-1,2-dihydro-2-isoquinolinyl]-2-butenedioates in excellent yields and with high selectivity. The reaction proceeds smoothly at room temperature without a catalyst. Quinoline, DMAD and indole also undergo smooth coupling to furnish dimethyl (E)-2-[2-(1H-3-indolyl)-1
首次实现了异喹啉,乙炔二羧酸二甲酯(DMAD)和吲哚的三组分偶联,从而生成了二甲基(E)-2- [1-(1 H -3-吲哚基)-1,2-二氢-2-异喹啉基] -2-丁烯二酸酯具有优异的收率和高选择性。在没有催化剂的情况下,反应在室温下平稳进行。在相似条件下,喹啉,DMAD和吲哚也经历平滑偶联,以提供二甲基(E)-2- [2-(2-(1H -3-吲哚基)-1,2-二氢-1-喹啉基] -2-丁烯二酸酯。这种方法对于一锅操作中吲哚和氮杂-芳族化合物的功能化非常有用。