CuBr2-catalyzed alkylation of furans with benzyl alcohols and benzaldehydes. Domino reactions including this alkylation as a key step
作者:Anton S. Makarov、Anna E. Kekhvaeva、Christopher J.J. Hall、Daniel R. Price、Igor V. Trushkov、Maxim G. Uchuskin
DOI:10.1016/j.tet.2017.10.054
日期:2017.12
CuBr2-catalyzed alkylation of furans with a broad scope of benzyl alcohols and benzaldehydes is reported. Reaction proceeds efficiently under mild reaction conditions requiring no inert atmosphere or other precautions. Moreover, it is shown that CuBr2 catalyzes domino reactions of furans with benzyl alcohols or benzaldehydes bearing a nucleophilic moiety in the ortho-position. These protocols offer 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.
Simple route to 3-(2-indolyl)-1-propanones via a furan recyclization reaction
作者:Alexander V. Butin、Sergey K. Smirnov、Tatyana A. Stroganova、Wolfgang Bender、Gennady D. Krapivin
DOI:10.1016/j.tet.2006.10.056
日期:2007.1
A simple route to 1-R-3-(2-indolyl)-1-propanones has been elaborated based on recyclization of 2-(2-aminobenzyl)furan derivatives. Being a modification of the Reissert indole synthesis, our approach employs the furan ring as a source of carbonyl function. This approach is general and allows varying of substituents in aromatic ring as well as in 3-position of indole nucleus. (c) 2006 Elsevier Ltd. All rights reserved.