14227-13-5Relevant academic research and scientific papers
Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2′-Disubstituted Stilbenes
Zhang, Zhi-Jun,Zhou, Xu,Li, Dashan,Chen, Yang,Xiao, Wen-Wen,Li, Rong-Tao,Shao, Li-Dong
, p. 7609 - 7624 (2021/05/29)
An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2′-disubstituted stilbenes is described. Under the mild CuCl/DBED/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes were efficiently p
Copper-catalyzed double intramolecular ullmann coupling for the synthesis of diastereomerically and enantiomerically pure 4b,9b-dihydrobenzofuro[3,2-b]benzofurans
Imrich, Hans-Georg,Conrad, Jürgen,Beifuss, Uwe
, p. 7718 - 7734 (2015/12/31)
The copper-catalyzed double intramolecular Ullmann coupling of syn-1,2-bis(2-bromoaryl)ethane-1,2-diols with catalytic amounts of CuII oxinate as the copper source, K3PO4 as a base, and KI as a reductant in aqueous acetoni
Asymmetric cyclization via oxygen cation radical: Enantioselective synthesis of cis-4b,9b-dihydrobenzofuro[3,2-b]benzofurans
Masutani, Kouta,Irie, Ryo,Katsuki, Tsutomu
, p. 36 - 37 (2007/10/03)
Aerobic oxidative cyclization of 2,2′-dihydroxystilbenes via oxygen cation radical to give cis-4b,9b-dihydrobenzofuro[3,2-b]benzofurans was carried out in an enantioselective manner (up to 89% ee) by using (nitrosyl)Ru(salen) 10 as the catalyst under phot
Reduction of o-Hydroxybenzaldehydes by Aqueous Titanium Trichloride. A New Route to 2-(Benzofuran-2-yl)phenols
Clerici, Angelo,Porta, Ombretta,Arnone, Alberto
, p. 1240 - 1248 (2007/10/02)
Reduction of o-hydroxybenzaldehydes 1a-k by aqueous titanium trichloride is a new simple way to the synthesis of the title compounds 2a-k.The temperature at which the reduction occurs (50 or 80 deg C) is related to the nature and position of the R group i
