Functionalized and substituted bis(indolyl)alkanes were synthesized from indoles and dehydroalanine esters in the presence of catalytic amounts of Brønsted acid. When 2- or 4-bulky substituted indoles were used, unusual elimination occurred to yield interesting indolyl acrylates.
Gold(I) or Silver Catalyzed Synthesis of α-Indolylacrylates
作者:Valentina Pirovano、Diego Facoetti、Monica Dell’Acqua、Emanuela Della Fontana、Giorgio Abbiati、Elisabetta Rossi
DOI:10.1021/ol401716b
日期:2013.8.2
Methyl 2-acetamidoacrylate reacted with various 2-substituted indoles in the presence of catalytic amounts of AgSbF6 or AuPPh3NTf2 to provide the corresponding methyl 2-(2-substituted-1H4ndo1-3-yl)acrylates.
Synthesis of α-indolylacrylates as potential anticancer agents using a Brønsted acid ionic liquid catalyst and the butyl acetate solvent
study, new α-indolylacrylate derivatives were synthesized by the reaction of 2-substituted indoles with various pyruvates using a Brønstedacidionicliquid catalyst in butyl acetate solvent. This is the first report on the application of pyruvate compounds for the synthesis of indolylacrylates. The acrylate derivatives could be obtained in good to excellent yields. A preliminary biological evaluation