1563173-85-2Relevant academic research and scientific papers
Cobalt-Catalyzed Redox-Neutral Sulfonylative Coupling from (Hetero)aryl Boronic Acids, Ammonium Salts and Potassium Metabisulfite
Zhang, Yingying,Zhu, Haibo,Fan, Qiangwen,Yang, Liu,Xie, Zongbo,Le, Zhang-Gao
, (2022/01/08)
An efficient cobalt-catalyzed redox-neutral sulfonylative coupling to afford (hetero)aryl alkyl sulfones from boronic acids, ammonium salts and potassium metabisulfite has been realized. Commercially available and air-stable CoCl2, in combination with phenanthroline ligand, is sufficient to achieve rapid and high-yielding conversion of the reactants into the corresponding sulfones. This practical transformation proceeds smoothly through C?N bond cleavage under redox-neutral catalytic conditions and shows broad functional-group tolerance. Other carbon based electrophiles, including diaryliodonium salts, heteroaryl halides, and carbonates were compatible. Further transformation of aryl alkyl sulfones then allows conversion into olefins, alkenyl sulfones and halogenated sulfones, respectively, in a one-pot process.
One-pot synthesis of sulfones via Ni(II)-catalyzed sulfonylation of boronic acids, Na2S2O5 and benzylic ammonium salts
Zhu, Haibo,Liu, Yishuai,Zhang, Yingying,Yang, Liu,Meng, Jia,Li, Qian,Gong, Bozhen,Xie, Zongbo,Le, Zhang-Gao
, (2021/03/08)
A one-pot nickel-catalyzed synthesis of (hetero)aryl alkyl sulfones 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 SO2 as a novel area to be investigated.
