Efficient synthesis of pyrroles and 4,5,6,7-tetrahydroindoles via palladium-catalyzed oxidation of hydroxy-enamines
作者:Yutaka Aoyagi、Toshihiko Mizusaki、Masahiro Shishikura、Takashi Komine、Tokuji Yoshinaga、Haruko Inaba、Akihiro Ohta、Koichi Takeya
DOI:10.1016/j.tet.2006.06.070
日期:2006.9
Facile and one-pot synthetic route of poly-substituted pyrroles and 4-oxo-4,5,6,7-tetrahydroindoles is established, which consists of three steps: (1) palladium-catalyzed oxidation of hydroxy-enamines by using tetrakis(triphenylphosphine)palladium and mesityl bromide oxidation system, (2) intramolecular cyclization, and (3) dehydration.
建立了多取代的吡咯和4-oxo-4,5,6,7-四氢吲哚的简便,一锅合成路线,该路线包括三个步骤:(1)钯催化的四胺氧化羟基烯胺(三苯基膦)钯和异丁基溴的氧化系统,(2)分子内环化和(3)脱水。