C–N Cross-Couplings for Site-Selective Late-Stage Diversification via Aryl Sulfonium Salts
作者:Pascal S. Engl、Andreas P. Häring、Florian Berger、Georg Berger、Alberto Pérez-Bitrián、Tobias Ritter
DOI:10.1021/jacs.9b07323
日期:2019.8.28
We report diverse C-N cross-coupling reactions of aryl thianthrenium salts that are formed site-selectively by direct C-H functionalization. The scope of N-nucleophiles ranges fromprimary and secondary alkyl and aryl amines to various N-containing heterocycles, and the overall transformation is applicable to late-stage functionalization of complex, drug-like small molecules.
Adhesion promoting photoinitiators for UV cured coatings over metal surfaces
申请人:Galbo James P.
公开号:US20090104464A1
公开(公告)日:2009-04-23
Compounds containing both photoinitiator moieties and adhesion promoting moieties and coating formulations containing them are disclosed, in particular, durable UV cured primer layers for coil coatings. One embodiment includes a coated metal surface which comprises a metal substrate with at least one surface immediately adjacent to a coating layer comprising a photoinitiator chemically bound to an adhesion promoter is disclosed.
Nickel Meets Aryl Thianthrenium Salts: Ni(I)-Catalyzed Halogenation of Arenes
作者:Shengyang Ni、Jiyao Yan、Srija Tewari、Edward J. Reijerse、Tobias Ritter、Josep Cornella
DOI:10.1021/jacs.3c02611
日期:2023.5.10
Herein, a regioselective, late-stage two-step arene halogenation method is reported. We propose how unusualNi(I)/(III) catalysis is enabled by a combination of aryl thianthrenium and Niredoxproperties that is hitherto unachieved with other (pseudo)halides. The catalyst is accessed in situ from inexpensive NiCl2·6(H2O) and zinc without the need of supporting ligands.