Arylation of Lithium Sulfinates with Diaryliodonium Salts: A Direct and Versatile Access to Arylsulfones
摘要:
An efficient, transition-metal-free arylation of lithium sulfinates, which are readily accessible from reactions of organolithium reagents with sulfur dioxide, is described. Based on this method, a practical protocol for the direct transformation of (hetero)arenes and (hetero)aromatic halides into diarylsulfones was developed.
Arylation of Lithium Sulfinates with Diaryliodonium Salts: A Direct and Versatile Access to Arylsulfones
摘要:
An efficient, transition-metal-free arylation of lithium sulfinates, which are readily accessible from reactions of organolithium reagents with sulfur dioxide, is described. Based on this method, a practical protocol for the direct transformation of (hetero)arenes and (hetero)aromatic halides into diarylsulfones was developed.
Reactions of [fluoro(methylsulfonyloxy)iodo]benzene with norbornene, cis-5-norbornene-endo-2,3-dicarboxylic acid, and cis-5-norbornene-endo-2,3-dicarboxylic anhydride were studied. A new mild procedure was developed for introduction of fluoro and sulfonyloxy or two sulfonyloxy groups into molecules of norbornene and its derivatives.
[EN] A SYNTHETIC PATHWAY TOWARDS APREMILAST<br/>[FR] NOUVELLE VOIE DE SYNTHÈSE VERS L'APRÉMILAST
申请人:LEK PHARMACEUTICALS
公开号:WO2017046319A1
公开(公告)日:2017-03-23
The present invention relates to an asymmetric process for providing N-2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-1,3-dioxo-2,3-dihydro-1H-isoindol-4-yl}acetamide (apremilast) or a pharmaceutically acceptable salt or solvate thereof.
An improved preparation of sulfinate salts and their Michael addition to enones
作者:Harold W. Pinnick、Michael A. Reynolds
DOI:10.1021/jo01315a043
日期:1979.1
PINNICK H. W.; REYNOLDS M. A., J. ORG. CHEM., 1979, 44, NO 1, 160-161
作者:PINNICK H. W.、 REYNOLDS M. A.
DOI:——
日期:——
Arylation of Lithium Sulfinates with Diaryliodonium Salts: A Direct and Versatile Access to Arylsulfones
作者:Natalie Umierski、Georg Manolikakes
DOI:10.1021/ol402235v
日期:2013.10.4
An efficient, transition-metal-free arylation of lithium sulfinates, which are readily accessible from reactions of organolithium reagents with sulfur dioxide, is described. Based on this method, a practical protocol for the direct transformation of (hetero)arenes and (hetero)aromatic halides into diarylsulfones was developed.