PtCl2-catalyzed reactions of o-alkynylanilines with ethyl propiolate and dimethyl acetylenedicarboxylate
作者:Xun Li、Jun-Yan Wang、Wei Yu、Long-Min Wu
DOI:10.1016/j.tet.2008.11.095
日期:2009.2
The PtCl2-catalyzed reactions between indoles and ethyl propiolate gave rise to mono and double addition products. The composition of the products was largely influenced by the substituents on the indoles as well as the amount of ethyl propiolate used. o-Alkynylanilines reacted with ethyl propiolate and dimethyl acetylenedicarboxylate under the catalysis of PtCl2 to generate the corresponding 2,3-disubstituted
吲哚和丙酸乙酯之间的PtCl 2催化反应产生单加成产物和双加成产物。产物的组成在很大程度上受到吲哚上的取代基以及丙酸乙酯用量的影响。在PtCl 2的催化下,邻炔基苯胺与丙酸乙酯和乙酰二羧酸二甲酯反应,生成相应的2,3-二取代的吲哚。通过遵循顺序的环化/分子间加成途径来进行反应。