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.
Preparation of Highly Reactive Lithium Metal Dendrites for the Synthesis of Organolithium Reagents
作者:Michael P. Crockett、Lupita S. Aguirre、Leonel B. Jimenez、Han-Hsiang Hsu、Andy A. Thomas
DOI:10.1021/jacs.2c07207
日期:2022.9.14
A long-standing problem in the area of organolithium chemistry has been the need for a highly reactive Li-metal source that mimics Li-powders but has the advantage of being freshly prepared from inexpensive and readily available Li-sources. Here, we report a simple and convenient activation method using liquid ammonia that furnishes a new Li-metal source in the form of crystalline Li-dendrites. The