21381-88-4Relevant academic research and scientific papers
Method for preparing beta-carbonyl sulfone
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Paragraph 0030; 0031, (2020/03/12)
The invention discloses a method for preparing beta-carbonyl sulfone. The preparation method comprises the following steps: by taking an alpha-carbonyl diazo compound and sodium arylsulfinate as reaction substrates, cheap silver nitrate as an optimal catalyst, 1, 10-phenanthroline as a ligand and potassium persulfate as an oxidant, carrying out coupling reaction in a mixed solvent of acetonitrileand water to obtain the beta-carbonyl sulfone compound. Compared with the prior art, the method has the advantages of wide reaction substrate range, short reaction time, high reaction yield, mild reaction conditions and the like. Non-toxic and harmless reagents are used as reaction raw materials, so that the method is harmless to the environment and meets the requirements of modern green chemicaldevelopment. Post-reaction treatment is simple, and separation and purification are facilitated. In addition, the reaction can realize gram-scale synthesis, and lays a foundation for practical application.
Cross coupling of sulfonyl radicals with silver-based carbenes: A simple approach to β-carbonyl arylsulfones
Li, Jingjing,Lian, Pengcheng,Wan, Xiaobing,Wang, Hanghang,Zheng, Yonggao
, p. 2163 - 2169 (2020/03/27)
A coupling reaction between sulfonyl radicals and silver-based carbenes has been well established. This simple radical-carbene coupling (RCC) process provided an efficient approach to a variety of β-carbonyl arylsulfones from sodium arylsulfinates and diazo compounds, and was characterized by wide substrate scope, easy scale-up, simple manipulation, accessible starting materials, and mild reaction conditions.
Oxidation of Organosulfides to Organosulfones with Trifluoromethyl 3-Oxo-1λ 3,2-benziodoxole-1(3 H)-carboxylate as an Oxidant
Mangaonkar, Saeesh R.,Kole, Priyanka B.,Singh, Fateh V.
supporting information, p. 199 - 202 (2017/09/28)
An alternative approach is described for the oxidation of organosulfides to the corresponding organosulfones by using trifluoromethyl 3-oxo-1λ 3,2-benziodoxole-1(3 H)-carboxylate as an oxidant. The oxidation of the sulfides was performed by using 2.4 equivalents of the oxidant in refluxing acetonitrile. The oxidation products were isolated in good to excellent yields.
A new methodology for obtaining α-oxo ester equivalents: Sulfanylation of α-sulfonyl carboxylic esters in a solid/liquid phase transfer catalytic system
Wladislaw, Blanka,Marzorati, Liliana,Junior, Nelson Ferreira Claro,Di Vitta, Claudio
, p. 420 - 422 (2007/10/03)
A new, convenient procedure for the synthesis of a wide range of α-methylsulfanyl-α-phenylsulfonyl carboxylic esters has been developed and their facile conversion to the corresponding α-oxo esters demonstrated.
A CONVENIENT SYNTHESIS OF PHENYLSULFONYLALKANOIC ACIDS
Ratajczak, Aleksander,Polanski, Jaroslaw
, p. 1271 - 1275 (2007/10/02)
Ethyl phenylsulfonylacetate is alkylated in high yields with alkyl halides in toluene/K2CO3 two-phase system with TEBA (TBAB) as a catalyst.
