Pro‐aromaticity Enabled Dealkenylative Functionalizations via Photo‐Excitation and Oxidation
作者:Si‐Cong Chen、Qi Zhu、Han Chen、Zijing Chen、Tuoping Luo
DOI:10.1002/chem.202203425
日期:——
Dealkenylative Giese-type addition, hydrazination, borylation, Minisci-type alkylation, copper-catalyzed NH alkylation, acylation, alkynylation, cyanation, and azidation, have been achieved on olefin-containing substrates in a one-pot and highly modular fashion.
A dual nickel/photoredox catalyzed selective radical-radical cross-coupling reaction has been developed with readily available carboxylicacids and their NHPI ester derivatives as coupling partners. This synergistic catalysis enables the mild and efficient building of C(sp2)−C(sp3) bonds or C(sp3)−C(sp3) bonds, affording structurally complex ketones and congested products with all-carbon quaternary
Homologation of Ketones: Direct Transformation of Alkyl Ketones to Aryl Ketones via Photoredox Catalyzed Deacylation-Aroylation Sequence
作者:Tian Wang、Zengyu Zhang、Fan Gao、Xiaoyu Yan
DOI:10.1021/acs.orglett.4c02576
日期:2024.8.16
Ketones, as essential functional group skeletons, have garnered significant interest due to their diverse transformations. Herein, we describe a versatile photoredox catalyzed deacylation-aroylation strategy that enables the direct transformation of alkyl ketones to aryl ketones. This process involves photoredox deacylation of dihydroquinazolinones derived from alkyl ketones to generate alkyl radicals