Direct Aldehyde C–H Arylation and Alkylation via the Combination of Nickel, Hydrogen Atom Transfer, and Photoredox Catalysis
作者:Xiaheng Zhang、David W. C. MacMillan
DOI:10.1021/jacs.7b07078
日期:2017.8.23
A mechanism that enables direct aldehyde C–H functionalization has been achieved via the synergistic merger of photoredox, nickel, and hydrogen atom transfer catalysis. This mild, operationally simple protocol transforms a wide variety of commercially available aldehydes, along with aryl or alkyl bromides, into the corresponding ketones in excellent yield. This C–H abstraction coupling technology has
The present invention relates to chemokine receptor binding compounds, pharmaceutical compositions and their use. More specifically, the present invention relates to modulators of chemokine receptor activity, preferably modulators of CCR5. These compounds demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
A scalable and efficient method suitable for the preparation of a wide variety of ketones via new intermediate V has been developed.
开发了一种可扩展且高效的方法,适用于通过新的中间体V制备多种酮。
Alpha-synuclein ligands
申请人:Washington University
公开号:US10300155B2
公开(公告)日:2019-05-28
The present invention generally relates to various compounds that are useful as α-synuclein ligands. The invention further relates to methods of using these compounds and their radiolabeled analogs for the detection of synucleinopathies, including Parkinson's disease (PD).
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