Cu2O-catalyzed C–S bond cross coupling of alkane-/arene-sulfinates and (enantioenriched) benzylic quaternaryammoniumsalts has been developed. The product benzylic sulfones were obtained in good to high yields (75–96%). Chiral arylmethyl sulfones with high enantiomeric excess (90–94% ee) were also synthesized in the presence of Cu2O and 1,1′-bis-(diphenylphosphino)ferrocene (dppf).
Cobalt‐Catalyzed Redox‐Neutral Sulfonylative Coupling from (Hetero)aryl Boronic Acids, Ammonium Salts and Potassium Metabisulfite
作者:Yingying Zhang、Haibo Zhu、Qiangwen Fan、Liu Yang、Zongbo Xie、Zhang‐Gao Le
DOI:10.1002/cctc.202101716
日期:2022.2.8
redox-neutral sulfonylative coupling of boronic acids and ammonium salts to afford (hetero)aryl alkyl sulfones by using potassium metabisulfite has been realized. Various functional sulfones were obtained by using commercially available and air-stable CoCl2 in combination with phenanthroline ligand. In addition, various carbon based electrophiles, including diaryliodoniumsalts, heteroaryl halides, and
One-pot synthesis of sulfones via Ni(II)-catalyzed sulfonylation of boronic acids, Na2S2O5 and benzylic ammonium salts
作者:Haibo Zhu、Yishuai Liu、Yingying Zhang、Liu Yang、Jia Meng、Qian Li、Bozhen Gong、Zongbo Xie、Zhang-Gao Le
DOI:10.1016/j.mcat.2021.111500
日期:2021.4
from readily available boronic acids, sodium metabisulfite and benzylic ammonium salts as electrophiles is described. This general and efficient synthetic process is of broad scope, occurs in two steps, and delivers structural diverse sulfones, and the intermediate sulfinate is isolated. The transformation exhibits application of benzylic ammonium salts as novel electrophiles for direct insertion of
[EN] QUINOLINE COMPOUNDS<br/>[FR] COMPOSÉS DE QUINOLÉINE
申请人:WYETH CORP
公开号:WO2008049047A2
公开(公告)日:2008-04-24
[EN] This invention relates generally to quinoline-based modulators of Liver X receptors (LXRs) and related methods. [FR] La présente invention concerne de manière générale des modulateurs à base de quinoléine des récepteurs X du foie (LXR) et des procédés associés.