Sulfinates from Amines: A Radical Approach to Alkyl Sulfonyl Derivatives via Donor–Acceptor Activation of Pyridinium Salts
作者:Jonathan A. Andrews、Loïc R. E. Pantaine、Christopher F. Palmer、Darren L. Poole、Michael C. Willis
DOI:10.1021/acs.orglett.1c03194
日期:2021.11.5
Synthetically versatile alkyl sulfinates can be prepared from readily available amines, using Katritzky pyridinium salt intermediates. In a catalyst-free procedure, primary, secondary, and benzylic alkyl radicals are generated by photoinduced or thermallyinduced single-electron transfer (SET) from an electron donor–acceptor (EDA) complex, and trapped by SO2 to generate sulfonyl radicals. Hydrogen
Synthesis of Sulfones from Organozinc Reagents, DABSO, and Alkyl Halides
作者:Benjamin N. Rocke、Kevin B. Bahnck、Michael Herr、Sophie Lavergne、Vincent Mascitti、Christian Perreault、Jana Polivkova、Andrei Shavnya
DOI:10.1021/ol4031233
日期:2014.1.3
Organozinc reagents react with the SO2 surrogate DABSO, and the resulting zinc sulfinate salts are alkylated in situ to afford sulfones. This transformation has a broad scope and is compatible with a wide range of structural motifs of medicinal chemistry relevance including nitrile, secondary carbamates, and nitrogen-containing heterocycles.