Gold(III) Porphyrin-Catalyzed Cycloisomerization of Allenones
摘要:
Gold(III) porphyrin-catalyzed cycloisomerization of allenones gave the corresponding furans in good to excellent yields (up to 98%) and with quantitative substrate conversions. By recovering the Au(III) catalyst, a recyclable catalytic system is developed with over 8300 product turnovers attained for the cycloisomerization of 1-phenyl-buta-2,3-dien-1-one. The versatility of the gold(Ill) porphyrin catalyst was exemplified by its application to the hydroamination and hydration of phenylacetylene in 73% and 87% yield, respectively.
Efficient Cross-Coupling of Aryl Chlorides with Arylzinc Reagents Catalyzed by Amido Pincer Complexes of Nickel
作者:Li Wang、Zhong-Xia Wang
DOI:10.1021/ol701927g
日期:2007.10.1
The nickel-catalyzed Negishi cross-coupling reaction of arylchlorides with arylzinc compounds was investigated. The nickel complexes with the amido pincer type of ligands exhibited high catalytic activity and good functional group tolerance.
Palladium-Catalyzed Indole, Pyrrole, and Furan Arylation by Aryl Chlorides
作者:Enrico T. Nadres、Anna Lazareva、Olafs Daugulis
DOI:10.1021/jo1018969
日期:2011.1.21
The palladium-catalyzed directarylation of indoles, pyrroles, and furans by aryl chlorides has been demonstrated. The method employs a palladium acetate catalyst, 2-(dicyclohexylphosphino)-biphenyl ligand, and an inorganic base. Electron-rich and electron-poor aryl chlorides as well as chloropyridine couplingpartners can be used, and arylated heterocycles are obtained in moderate to good yields.
Cross-Coupling Reactions for the Preparation of 2-Arylfurans, 2-Benzylfuran and 2-Cinnamylfuran
作者:Andrew Pelter、Martin Rowlands、Gillian Clements
DOI:10.1055/s-1987-27840
日期:——
Pd[0] catalysed coupling between organyl bromides and either 2-lithofuran or 2-furylzinc chloride are described. Arylation by a wide variety of aromatic bromides can be carried out in high yields and on a large scale. Benzylation and cinnamylation are also successful.
METHOD FOR PREPARING SILANE DERIVATIVES FROM FURAN DERIVATIVES IN PRESENCE OF BORANE CATALYST
申请人:INSTITUTE FOR BASIC SCIENCE
公开号:US20190263840A1
公开(公告)日:2019-08-29
The present invention relates to a method for preparing various silane derivatives by subjecting various furan derivatives to hydrosilylation in the presence of a borane catalyst. The method for preparing silane derivatives according to the present invention is a very efficient method for converting, into high value-added silane derivatives, various furan derivatives derived from biomass.
Cross-Coupling of Organostannanes with Organic Iodides Catalyzed by Silica-Supported Poly[3-(2-cyanoethylsulfanyl)propylsiloxane palladium] Complex Under Aqueous Medium
作者:Suk-Ku Kang、Tae-Gon Baik、Si-Young Song
DOI:10.1055/s-1999-2614
日期:1999.3
The cross-coupling of organostannanes with organic iodides was achieved in the presence of a catalytic amount of a silica-supported sulfur palladium complex (5 mol %) in CH3CN/H2O (4 : 1) at 80 °C for 5 h in 71-89% yields.