Iron-Catalyzed C–C Single-Bond Cleavage of Alcohols
作者:Wei Liu、Qiang Wu、Miao Wang、Yahao Huang、Peng Hu
DOI:10.1021/acs.orglett.1c03137
日期:2021.11.5
An iron-catalyzed deconstruction/hydrogenation reaction of alcohols through C–C bond cleavage is developed through photocatalysis, to produce ketones or aldehydes as the products. Tertiary, secondary, and primary alcohols bearing a wide range of substituents are suitable substrates. Complex natural alcohols can also perform the transformation selectively. A investigation of the mechanism reveals a
An electrophotochemical ring-opening bromination of unstrained tert-cycloalkanols has been developed. This electrophotochemical method enables the oxidative transformation of cycloalkanols with 5- to 7-membered rings into synthetically useful ω-bromoketones without the use of chemical oxidants or transition-metal catalysts. Alkoxy radical species would be key intermediates in the present transformation
Electrochemical Deconstructive Functionalization of Cycloalkanols via Alkoxy Radicals Enabled by Proton-Coupled Electron Transfer
作者:Mishra Deepak Hareram、Albara A. M. A. El Gehani、James Harnedy、Alex C. Seastram、Andrew C. Jones、Matthew Burns、Thomas Wirth、Duncan L. Browne、Louis C. Morrill
DOI:10.1021/acs.orglett.2c01552
日期:2022.6.3
Herein, we report a new electrochemical method for alkoxyradical generation from alcohols using a proton-coupled electron transfer (PCET) approach, showcased via the deconstructive functionalization of cycloalkanols. The electrochemical method is applicable across a diverse array of substituted cycloalkanols, accessing a broad range of synthetically useful distally functionalized ketones. The orthogonal
Iron-catalyzed deconstructive alkylation through chlorine radical induced C–C single bond cleavage under visible light
作者:Qiang Wu、Wei Liu、Miao Wang、Yahao Huang、Peng Hu
DOI:10.1039/d2cc03896j
日期:——
Selective C–C single bond cleavage of simple compounds is a highly challenging and desired process. Herein, a chlorine radical-induced deconstructive C–C bond alkylation with alcohols and alkenes catalyzed by iron salts was reported for the first time. Readily available alcohols and various electron-deficient alkenes were tolerated. Late-stage and large-scale reactions proceed smoothly. This catalyst