An efficient and convenient palladium-catalyzed carbonylative procedure for the synthesis of bis(indolyl)methanes has been established for the first time. With TFBen (benzene-1,3,5-triyl triformate) as the solid CO source, aryl iodides and indoles were transformed into the corresponding bis(indolyl)methane derivatives in moderate to excellent yields.
2-Iodoimidazolinium Salt-Catalyzed Friedel–Crafts Reaction: Synthesis of Bis(indolyl)methane Alkaloids
作者:Takayoshi Arai、Satoru Kuwano、Takumi Suzuki
DOI:10.3987/com-18-s(t)33
日期:——
2-Iodoimidazolinium salt-catalyzed Friedel Crafts reactions of indoles with aldehydes were developed. Under mild reaction conditions, various bis(indolyl)methane derivatives, an important class of indole alkaloids, were obtained in good to high yields.