Copper-Catalyzed Fluoroolefination of Silyl Enol Ethers and Ketones toward the Synthesis of β-Fluoroenones
作者:Yanlin Li、Jing Liu、Shuang Zhao、Xuzhao Du、Minjie Guo、Wentao Zhao、Xiangyang Tang、Guangwei Wang
DOI:10.1021/acs.orglett.7b03700
日期:2018.2.16
A general and facile synthetic method for β-fluoroenones from silylenolethers or ketones, with a copper–amine catalyst system, has been developed. The reaction proceeded by a tandem process of difluoroalkylation–hydrolysis–dehydrofluorination. This method is characterized by high yields, excellent Z/E ratios, a low-cost catalyst, and a broad substrate scope. The synthetic potential of β-fluoroenones
The photochemical reaction of perfluoroalkyl iodide with α-methylstyrene and related compounds in the presence of hexabutylditin under oxygen atmosphere produces the fluoroalkylated alcohols in good yields. The reaction was photochemically initiated, and proceeded via a radical chain mediated by the ditin.
Novel Synthesis of Fluoroalkylated α,β-Unsaturated Ketones by the Oxygenative Perfluoroalkylation of α-Chlorostyrenes
作者:Masato Yoshida、Masanori Ohkoshi、Masahiko Iyoda
DOI:10.1246/cl.2000.804
日期:2000.7
The photochemical reaction of perfluoroalkyl iodide with α-chlorostyrenes in the presence of hexabutylditin under oxygen atmosphere produced fluoroalkylated α,β-unsaturated ketones in moderate to good yields.