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.
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