904328-01-4Relevant academic research and scientific papers
Reduction of bis(5-alkyl-2-furyl)(2-nitroaryl)methane with aqueous titanium trichloride solution
Deng, Wei,Li, Dong-Kun,Tan, Jing-Yi,Xu, Zheng-Yang
supporting information, (2021/09/29)
In this article, we introduces a new method for the synthesis of substituted indole by reductive recyclization of bis(5-alkyl-2-furyl)(2-nitroaryl)methane. Bis(5-alkyl-2-furyl)(2-nitroaryl)methane undergo reduction to provide indole or aniline. In the pro
Synthesis of 2,4-difuryl-4H-3,1-benzothiazines via a furan ring migration reaction
Abaev, Vladimir T.,Tsiunchik, Fatima A.,Gutnov, Andrey V.,Butin, Alexander V.
, p. 475 - 481 (2008/09/19)
(Chemical Equation Presented) A new simple synthetic approach to 2,4-difuryl-4H-3,1-benzothiazines from 2-isothiocyanoaryldifurylmethanes in the presence of acidic catalyst is described. This rearrangement is a new example of furan ring migration reaction
Furan ring opening-indole ring closure: Synthesis of furo[2′, 3′:3,4]-cycloheota[1,2-b]indolium chlorides
Butin, Alexander V.,Smirnov, Sergey K.,Stroganova, Tatyana A.
, p. 623 - 628 (2007/10/03)
A new synthetic approach to furo[2′,3′:3,4]cyclohepta[1,2-b] indolium chlorides is elaborated starting from 2-acetylaminoaryldifurylmethanes or 2-aminoaryldifurylmethanes under treatment with methanolic HCl solution. The reaction proceeds in three steps: recyclization, intramolecular cyclization, and disproportionation. In this case the furan ring takes part in building up both pyrrole and seven-membered rings. The same salts can be obtained directly from 2-acetylaminobenzaldehydes and 2-methylfuran under similar conditions without isolation of corresponding 2-acetylaminoaryldifurylmethanes.
