5398-77-6Relevant articles and documents
Preparation method of P-methylsulfonyl benzoic acid
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Paragraph 0024-0027; 0030-0033; 0036-0039; 0043-0047, (2021/10/13)
The invention relates to a preparation method of p-methylsulfonylbenzoic acid, and solves the technical problems of poor selectivity, serious environmental pollution, large wastewater and difficult treatment of solid waste in the traditional process, and comprises the following steps: (1) bromination. (2) Hydrolysis. (3) Alkalization. (4) Acidification and. The method is widely applied to the technical field of flame retardant synthesis.
COMPOSITES, METHODS AND USES THEREOF
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Page/Page column 26, (2021/06/04)
The present invention relates, in general terms, to methods of catalysing a reaction, including the steps of contacting a chemical entity comprising a sulphide moiety with a composite and an oxidant. The composite acts as a heterogeneous catalyst to oxidise the sulphide moiety. The present invention also relates to composites, methods of synthesising the composites and its use as a catalyst thereof.
Selective synthesis of sulfoxides and sulfonesviacontrollable oxidation of sulfides withN-fluorobenzenesulfonimide
Cao, Zhong-Yan,Li, Xiaolong,Lu, Hao,Wang, Panpan,Wang, Shengqiang,Xu, Xiaobo,Yan, Leyu,Yang, A-Xiu
supporting information, p. 8691 - 8695 (2021/10/22)
A practical and mild method for the switchable synthesis of sulfoxides or sulfonesviaselective oxidation of sulfides using cheapN-fluorobenzenesulfonimide (NFSI) as the oxidant has been developed. These highly chemoselective transformations were simply achieved by varying the NFSI loading with H2O as the green solvent and oxygen source without any additives. The good functional group tolerance makes the strategy valuable.