Synthesis of novel 3-alkoxy- and 3-alkylthioindole and -benzofuran-2-carboxamides
作者:Paul C. Unangst、David T. Connor、Steven R. Miller
DOI:10.1002/jhet.5570330674
日期:1996.11
The preparation of a series of 3,5-substituted indole- and benzofuran-2-carboxamides is described. A 3-alkoxy-5-hydroxybenzofuran was prepared by elaboration of a benzyloxy salicylate ester. A related 3-alkylthiobenzofuran was obtained by the addition of thionyl chloride and isopropylmagnesium chloride to a benzofuran ester. A series of 3-(methylthio)indoles was prepared from an indole sulfonium salt
描述了一系列3,5-取代的吲哚-和苯并呋喃-2-羧酰胺的制备。通过精制苄氧基水杨酸酯制备3-烷氧基-5-羟基苯并呋喃。通过将亚硫酰氯和异丙基氯化镁加到苯并呋喃酯中得到相关的3-烷硫基苯并呋喃。由吲哚sulf盐中间体制备了一系列3-(甲硫基)吲哚。