One-pot synthesis of sulfonyl (E)-stilbenes by nitrobenzene-mediated dimerizative desulfonation of benzylic sulfones
摘要:
A facile one-pot synthetic route for preparing sulfonyl (E)-stilbenes 4 is developed. The efficient route is realized by a nitrobenzene (PhNO2)-mediated dimerizative desulfonation of benzylic sulfones 3 in the presence of sodium hydride (NaH) in good yields. Some synthetic investigations of sulfonyl stilbenes 4 are also examined. (C) 2014 Elsevier Ltd. All rights reserved.
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
Photoinduced Synthesis of Bis‐Sulfonyl γ‐Arylated Ketones via DMAP/DDQ‐Mediated Stereogenic Conjugated Addition of α‐Sulfonyl Chalcones with Benzylic Sulfones
作者:Nai‐Chen Hsueh、Meng‐Yang Chang
DOI:10.1002/adsc.202201347
日期:2023.2.21
The DMAP/DDQ-mediated stereochemical conjugated addition of sulfonyl chalcones and benzylic sulfones under photolytic irradiation produces diverse bis-sulfonyl γ-arylated ketones with three contiguous stereogenic centers in a yield of 79%–92%. Herein, a plausible mechanism is proposed and discussed.