5000-48-6Relevant articles and documents
Facile One-Pot Access to α-Diazo-β-ketosulfones from Sulfonyl Chlorides and α-Haloketones
Dar'In, Dmitry,Kantin, Grigory,Bakulina, Olga,Krasavin, Mikhail
, p. 2259 - 2266 (2020/08/26)
A convenient one-pot approach to the preparation of α-diazo-β-ketosulfones from sulfonyl chlorides is described. It involves the conversion of the sulfonyl chloride to sodium sulfinate, alkylation of the latter with α-haloketones followed by diazo transfer using the 'sulfonyl-azide-free' ('SAFE') protocol in aqueous medium. The simple and expedient method relies on readily available starting materials and provides facile access to a wide variety of valuable diazo reagents for organic synthesis.
Copper-Catalyzed Oxidative Reaction of β-Keto Sulfones with Alcohols via C?S Bond Cleavage: Reaction Development and Mechanism Study
Du, Bingnan,Wang, Wenmin,Wang, Yang,Qi, Zhenghang,Tian, Jiaqi,Zhou, Jie,Wang, Xiaochen,Han, Jianlin,Ma, Jing,Pan, Yi
supporting information, p. 404 - 408 (2018/02/21)
A Cu-catalyzed cascade oxidative radical process of β-keto sulfones with alcohols has been achieved by using oxygen as an oxidant. In this reaction, β-keto sulfones were converted into sulfinate esters under the oxidative conditions via cleavage of C?S bond. Experimental and computational studies demonstrate that a new pathway is involved in this reaction, which proceeds through the formation of the key four-coordinated CuII intermediate, O?O bond homolysis induced C?S bond cleavage and Cu-catalyzed esterification to form the final products. This reaction provides a new strategy to sulfonate esters and enriches the research content of C?S bond cleavage and transformations.
(Arylsulfonyl)acetones and -acetonitriles: New activated methylenic building blocks for synthesis of 1,2,3-triazoles
Pokhodylo, Nazariy T.,Matiychuk, Vasyl S.,Obushak, Mykola D.
scheme or table, p. 2321 - 2323 (2010/02/16)
β-Keto sulfones and b-nitrile sulfones were used as building blocks for 1,2,3-triazole synthesis in the Dimroth cyclization. It was shown, that sulfone reagents undergo base-catalyzed cyclization under mild conditions (at room temperature) to give 1,2,3-triazoles in moderate to excellent yields. This fact has confirmed the high nucleophilicity of sulfonylmethylenic compounds and allows new synthetic applications. Georg Thieme Verlag Stuttgart.
Hypervalent iodine in synthesis. 66. One pot preparation of β-keto sulfones by reaction of ketones, [hydroxy(tosyloxy) iodo] benzene, and sodium sulfinates
Xie,Chen
, p. 3145 - 3149 (2007/10/03)
One pot reactions of ketones, [hydroxy(tosyloxy)iodo] benzene and sodium sulfinates lead to the formation of the corresponding β-keto sulfones under mild conditions and in good yield.
RAPID AMD LARGE-SCALE SYNTHESIS OF SULFONYL-SUBSTITUTED PROPANONES
Davis, Roman
, p. 823 - 828 (2007/10/02)
A one-pot, large-scale, and rapid (10-20 minutes) synthesis of sulfonyl-substituted propanone has been developed.The synthesis, starting with a thiol, chloroacetone, and OXONE, can easily be monitored with the use of a pH indicator.