Novel Synthesis of 2-Aryl and 2,3-Disubstituted Indoles by Modified Double Elimination Protocol
作者:Govindarajulu Babu、Akihiro Orita、Junzo Otera
DOI:10.1021/ol051826e
日期:2005.10.1
[reaction: see text] Syntheses of 2-aryl and 2,3-substituted indoles were realized by modified double elimination protocol. Under basic conditions, vinyl sulfones derived from the reaction of 2-aminobenzyl sulfone with benzaldehydes underwent cyclization and alkylation followed by elimination of sulfinic acid to afford 2,3-substituted indoles.
[反应:见正文]通过改良的双消除方案实现了2-芳基和2,3-取代的吲哚的合成。在碱性条件下,使2-氨基苄基砜与苯甲醛反应衍生的乙烯基砜进行环化和烷基化,然后消除亚磺酸,得到2,3-取代的吲哚。