40812-25-7Relevant 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.
Synthesis of sulfone derivatives via palladium-catalyzed cross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides
Luo, Jin,Wan, Juelin,Wang, Tao,Yu, Weijie
supporting information, (2021/12/31)
A palladium-catalyzed cross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides for the synthesis of various benzyl sulfones is reported. This novel protocol shows widespread functional group tolerance, leading to the desired sulfones in moderate to excellent yields.
Base-controlled divergent synthesis of vinyl sulfones from (benzylsulfonyl)benzenes and paraformaldehyde
Xiao, Fuhong,Hu, Yangling,Huang, Huawen,Xu, Fen,Deng, Guo-Jun
supporting information, p. 3527 - 3535 (2020/05/25)
A tuneable metal-free protocol for the selective preparation of a-substituted vinyl sulfone and (E)-vinyl sulfone derivatives has been described. In this process, stable paraformaldehyde was used as the carbon source. The base played an important role in the selectivity control of transformations. More than 50 products were synthesized with excellent chemoselectivity and broad functional group tolerance.
A general and practical sulfonylation of benzylic ammonium salts with sulfonyl hydrazides for the synthesis of sulfones
Zhu, Haibo,Zhang, Yingying,Liu, Yishuai,Yang, Liu,Xie, Zongbo,Jiang, Guofang,Le, Zhang-Gao
supporting information, (2020/05/06)
A practical and efficient approach adopting transition-metal-free cross-coupling of sulfonyl hydrazides with benzyl ammonium salts has been developed to synthesize benzyl sulfones using Cs2CO3 as base under mild conditions. The protocol employs stable and easy to handle coupling partners, and is endowed with good substrate compatibility, leading to functional benzyl sulfones in good yields.
Substance, with protein tyrosine kinase inhibitory activity, and preparation method and application thereof
-
Paragraph 0176; 0177, (2020/04/08)
The invention discloses substances having a protein tyrosine kinase inhibitory activity, and a preparation method and a use thereof; the substances are compounds having the structure represented by the general formula V, wherein in the formula V, X is sul
Reusable BNPs-SiO2@(CH2)3NHSO3H-catalysed selective oxidation of sulfides to sulfones
Bahrami, Kiumars,Khodamorady, Minoo
, (2018/10/15)
Reusable boehmite nanoparticles–silica–NHSO3H (BNPs-SiO2@(CH2)3NHSO3H) was found to be an efficient heterogeneous nanocatalyst for the selective oxidation of sulfides to sulfones in the presence of H2O2. Excellent yields, easy and quick isolation of products, short reaction times and excellent selectivity are the main advantages of this method. The catalyst was characterized using Fourier transform infrared spectroscopy, energy-dispersive X-ray analysis, X-ray diffraction, and transmission and scanning electron microscopies.
Synthesis and radioprotective effects of novel benzyl naphthyl sulfoxide (sulfone) derivatives transformed from Ex-RAD
Tang, Lin,Peng, Tao,Wang, Gang,Wen, Xiaoxue,Sun, Yunbo,Zhang, Shouguo,Liu, Shuchen,Wang, Lin
supporting information, p. 625 - 631 (2018/05/03)
In this work, a series of novel benzyl naphthyl sulfoxides (sulfones) derived from Ex-RAD were designed and synthesized as potential radioprotective agents. Some of the compounds considerably protected HUVECs against 60Co γ-irradiation, accompanied by the absence of cytotoxicity. Compared to Ex-RAD, compound 8n not only exhibited a significant protective effect on cell survival and radiation-induced DNA damage, but also remarkably enhanced the survival (100%) of mice in 30 days after being exposed to irradiation. The results suggested that some target compounds are valuable for further research as promising radioprotectors.
Engineering chiral Fe(salen)-based metal-organic frameworks for asymmetric sulfide oxidation
Yang, Zhiwei,Zhu, Chengfeng,Li, Zijian,Liu, Yan,Liu, Guohua,Cui, Yong
, p. 8775 - 8778 (2014/07/22)
Two chiral porous Fe(salen)-based metal-organic frameworks are constructed and are shown to be efficient and recyclable heterogeneous catalysts for asymmetric oxidation of sulfides to sulfoxides with an enantioselectivity of up to 96%.
Chiral microporous Ti(salan)-based metal-organic frameworks for asymmetric sulfoxidation
Zhu, Chengfeng,Chen, Xu,Yang, Zhiwei,Du, Xia,Liu, Yan,Cui, Yong
, p. 7120 - 7122 (2013/08/23)
Chiral porous metal-metallosalan frameworks are constructed from an unsymmetrical chiral pyridinecarboxylate ligand derived from Ti(salan) and are shown to be heterogeneous catalysts for asymmetric oxidation of thioethers to sulfoxides.
A chiral porous metallosalan-organic framework containing titanium-oxo clusters for enantioselective catalytic sulfoxidation
Xuan, Weimin,Ye, Chengcheng,Zhang, Mengni,Chen, Zhijie,Cui, Yong
, p. 3154 - 3159 (2013/07/26)
A chiral porous zeolite-like metal-organic framework is constructed by using mixed ligands of dipyridyl-functionalized chiral Ti(salan) and biphenyl-4,4′-dicarboxylate. The framework containing salan-bound Ti 4O6 clusters consists of both hydrophobic and amphiphilic mesocages and is shown to be an efficient and recyclable heterogeneous catalyst for the oxidation of thioethers to sulfoxides by aqueous H2O 2 (up to 82% ee), displaying markedly enhanced enantioselectivity over the homogeneous catalyst by providing a cavity confinement effect. This work highlights the potential of significantly improving enantioselectivity of homogeneous catalysts by using MOFs as support structures.
