Bhatt; Nargund; Patel, Journal of the University of Bombay, Science: Physical Sciences, Mathematics, Biological Sciences and Medicine, 1946, vol. 15/3 A, p. 31,37
A General and Efficient Catalyst for Palladium-Catalyzed C−O Coupling Reactions of Aryl Halides with Primary Alcohols
作者:Saravanan Gowrisankar、Alexey G. Sergeev、Pazhamalai Anbarasan、Anke Spannenberg、Helfried Neumann、Matthias Beller
DOI:10.1021/ja103248d
日期:2010.8.25
An efficient procedure for palladium-catalyzedcoupling reactions of (hetero)aryl bromides and chlorides with primary aliphatic alcohols has been developed. Key to the success is the synthesis and exploitation of the novel bulky di-1-adamantyl-substituted bipyrazolylphosphine ligand L6. Reaction of aryl halides including activated, nonactivated, and (hetero)aryl bromides as well as arylchlorides with
Heterogeneous Palladium-Catalyzed Synthesis of Aromatic Ethers by Solvent-Free Dehydrogenative Aromatization: Mechanism, Scope, and Limitations Under Aerobic and Non-Aerobic Conditions
derivatives and alcohols, both non-aromatic precursors, aryl ethers could be synthesized in good yields and with good selectivities in the presence of a catalytic amount of Pd/C, in one step, without added solvent, in a reaction vessel open to air. For less reactive substrates, the addition of 1-octene in a closed system undernon-aerobicconditions improved the conversion. In addition, the catalyst could
An Improved Cu-Based Catalyst System for the Reactions of Alcohols with Aryl Halides
作者:Ryan A. Altman、Alexandr Shafir、Alice Choi、Phillip A. Lichtor、Stephen L. Buchwald
DOI:10.1021/jo702024p
日期:2008.1.1
The use of 3,4,7,8-tetramethyl-1,10-phenanthroline (Me4Phen) as a ligand improves the Cu-catalyzed cross-coupling reactions of aryl iodides and bromides with primary and secondary aliphatic, benzylic, allylic, and propargylic alcohols. Most importantly, by employing this catalyst system, the need to use an excessive quantity of the alcohol coupling partner is alleviated. The relatively mild conditions
使用 3,4,7,8-四甲基-1,10-菲咯啉 (Me 4 Phen) 作为配体改善了 Cu 催化的芳基碘化物和溴化物与伯、仲脂肪族、苄基、烯丙基、和炔丙醇。最重要的是,通过使用这种催化剂体系,可以减轻使用过量醇偶联剂的需要。相对温和的条件、较短的反应时间和适度低的催化剂负载量允许在亲电子和亲核偶联伙伴上容忍多种官能团。
Organosoluble Copper Clusters as Precatalysts for Carbon−Heteroelement Bond-Forming Reactions: Microwave and Conventional Heating
作者:Gerald F. Manbeck、Adam J. Lipman、Robert A. Stockland,、Adrienne L. Freidl、Amy F. Hasler、Joshua J. Stone、Ilia A. Guzei
DOI:10.1021/jo048761y
日期:2005.1.1
The coupling of aryl iodides with alcohols under mild conditions has been explored using self-assembled octanuclear copper clusters as catalysts. Reactions involving tetrahydrofurfurylalcohol were typically complete in 4−8 h at 110 °C using an oil bath or 1−3 h with microwave heating. High yields of alkyl aryl ethers were obtained with catalyst loadings as low as 0.4 mol % cluster.