One-Pot Synthesis of Benzofurans via Palladium-Catalyzed Enolate Arylation with o-Bromophenols
摘要:
A one-pot synthesis of benzofurans which utilizes a palladium-catalyzed enolate arylation is described. The process demonstrates broad substrate scope and provides differentially substituted benzofurans in moderate to excellent yields. The utility of the method is further demonstrated by the synthesis of the natural product eupomatenoid 6 in three steps.
Arylation of Allyl Alcohols in Organic and Aqueous Media Catalyzed by Oxime-Derived Palladacycles: Synthesis of β-Arylated Carbonyl Compounds
作者:Emilio Alacid、Carmen Nájera
DOI:10.1002/adsc.200700301
日期:2007.12.10
oxime-derived palladacycle catalyzes the Mizoroki–Heck reaction of allyl alcohols with aryl iodides, bromides, and chlorides in aqueous and organic solvents. The reaction takes place in the presence of dicyclohexylmethylamine or cesium carbonate as bases, the addition of tetrabutylammonium bromide (TBAB) as additive for aryl bromides and chlorides being necessary. Under these reaction conditions, β-arylated aldehydes
One-Pot Synthesis of Benzofurans via Palladium-Catalyzed Enolate Arylation with <i>o</i>-Bromophenols
作者:Christian Eidamshaus、Jason D. Burch
DOI:10.1021/ol801510n
日期:2008.10.2
A one-pot synthesis of benzofurans which utilizes a palladium-catalyzed enolate arylation is described. The process demonstrates broad substrate scope and provides differentially substituted benzofurans in moderate to excellent yields. The utility of the method is further demonstrated by the synthesis of the natural product eupomatenoid 6 in three steps.
Synthesis, x-ray analysis, and acidolysis of exo- and endo-1-methylindene ozonides
作者:Masahiro Miura、Akio Ikegami、Masatomo Nojima、Shigekazu Kusabayashi、Kevin J. McCullough、Shigeru Nagase