Desulfinative Alkylation of Heteroarenes via an Electrostatic Electron Donor–Acceptor Complex
作者:Ramkrishna Laha、Twinkle I. Patel、Matthew J. Moschitto
DOI:10.1021/acs.orglett.2c02932
日期:2022.10.14
bioactive molecules and natural products; however, diversification of these rings often requires de novo heterocycle ring synthesis or demanding reaction conditions. We report a method for desulfinative alkylation of pyridine and quinoline N-methoxide salts that operates under both photocatalytic and electrostatic electron donor–acceptor-mediated pathways. Unlike most EDA-mediated processes, this reaction
Base‐Mediated C4‐Selective C−H‐Sulfonylation of Pyridine**
作者:Marius Friedrich、Georg Manolikakes
DOI:10.1002/ejoc.202200915
日期:2022.9.13
A novel one-pot protocol for the C4-selective sulfonylation of pyridines is described. Contrary to previous methods positional selectivity is controlled by a tailored combination of base and solvent.
A Versatile Reagent and Method for Direct Aliphatic Sulfonylation
作者:Andre Shavnya、Kevin D. Hesp、Andy S. Tsai
DOI:10.1002/adsc.201800071
日期:2018.5.2
methodology has been developed for the two‐step synthesis of aliphatic sulfinate salts, sulfonamides, sulfonyl fluorides, and unsymmetrical sulfones on the basis of alkylation of a new versatile sulfonylating reagent. The new reagent is easily accessible in one step; the developed protocols are conducted under mild conditions and have a broad substrate scope.
Reductant‐Free Cross‐Electrophile Synthesis of Di(hetero)arylmethanes by Palladium‐Catalyzed Desulfinative C−C Coupling
作者:Janette McKnight、Andre Shavnya、Neal W. Sach、David C. Blakemore、Ian B. Moses、Michael C. Willis
DOI:10.1002/anie.202116775
日期:2022.5.2
and a simple sulfinate transfer reagent. The reactions proceed by formation of an intermediate benzylic sulfinate, formed in situ, and deliver di(hetero)arylmethane products. The reactions use only commercial components, and no stoichiometric metal reductant is needed.