Oxidative Furan-to-Indole Rearrangement. Synthesis of 2-(2-Acylvinyl)indoles and Flinderole C Analogues
作者:Anton S. Makarov、Anton A. Merkushev、Maxim G. Uchuskin、Igor V. Trushkov
DOI:10.1021/acs.orglett.6b00805
日期:2016.5.6
Oxidative rearrangement of 2-(2-aminobenzyl)furans affording 2-(2-acylvinyl)indoles in a stereocontrolled manner in good-to-excellent yields has been developed. Thus, (2-aminobenzyl)furans with electron-releasing alkoxy substituents in the phenyl group form only E-isomers of 2-(2-acylvinyl)indoles. Conversely, substrates without such substituents produce target products as Z-isomers exclusively. A
Furan ring opening—indole ring closure: a new modification of the Reissert reaction for indole synthesis
作者:Alexander V Butin、Tat‘yana A Stroganova、Irina V Lodina、Gennady D Krapivin
DOI:10.1016/s0040-4039(01)00066-1
日期:2001.3
A new modification of the Reissert reaction is reported. On treatment of 2-tosylaminobenzylfurans with ethanolic HCl, some indole derivatives have been obtained. The furanring served as the origin of a carbonyl group in this reaction.