The α-alkylation of deprotonated Strecker products derived from primary amines and aromatic aldehydes with 2-halobenzyl halides furnishes intermediates that can be cyclized to 1,2-disubstituted indoles in moderate to high yields (up to 94% over two steps) by microwave-assisted copper- or palladium-catalyzed intramolecular cross-coupling.
由
伯胺和芳族醛衍生的去质子化的Strecker产品与2-卤代苄基卤化物的α-烷基化提供了中间体,该中间体可以通过微波-以中等至高收率(分两步收率高达94%)环化为1,2-二取代的
吲哚。辅助
铜或
钯催化的分子内交叉偶联。