3406-03-9Relevant articles and documents
Controlled Synthesis of β-Keto Sulfones and Vinyl Sulfones under Electrochemical Oxidation
Fang, Yang,Xu, Dongping,Yu, Yingliang,Tang, Rumeng,Dai, Shuaishuai,Wang, Zhenghua,Zhang, Wu
, (2022/04/09)
Selective sulfonylation and oxosulfonylation of alkenes with sulfinates have been developed via anodic oxidation in an undivided cell. The novel electrosynthetic method provided β-keto sulfones and vinyl sulfones with good to excellent yields in the absence of any transition metal catalyst and oxidants. Mechanism studies show that two different pathways involved in these two transformations.
Method for preparing beta-carbonyl sulfone compound by using half-sandwich iridium complex
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Paragraph 0034-0037, (2021/07/31)
The invention relates to a method for preparing a beta-carbonyl sulfone compound by using a half-sandwich iridium complex, which comprises the following step: in the presence of alkali, by taking acetophenone and sulfonyl chloride as raw materials and taking the half-sandwich iridium complex containing an o-carboborylbenzoxazole structure as a catalyst, conducting reacting at room temperature to prepare the beta-carbonyl sulfone compound. Compared with the prior art, the method has the advantages that the half-sandwich iridium complex containing the o-carboborylbenzoxazole structure is used as the catalyst, acetophenone and sulfonyl chloride are efficiently catalyzed to react under the room temperature condition to synthesize the beta-carbonyl sulfone compound, the product yield is high, the reaction condition is mild, the substrate is cheap and easy to obtain, and the catalytic efficiency is high.
Oxy-sulfonylation of terminal alkynesviaC-S coupling enabled by copper photoredox catalysis
Charpe, Vaibhav Pramod,Das, Deb Kumar,Hwang, Kuo Chu,Hwu, Jih Ru,Lin, Chun-Cheng,Pampana, V. K. K.,Sagadevan, Arunachalam
supporting information, p. 3569 - 3574 (2021/06/06)
We report the first literature example using visible light-induced trimethylsilyl azide (TMS-N3)-assisted copper-catalyzed oxy-sulfonylation of terminal C-C bonds to form β-keto sulfones (C-S bond formation). TMS-N3promotes the reaction by facilitating the formation of sulfonyl radicals, which later decompose into N2gas upon light irradiation. This method involves the use of commercially available and stable starting materials. Also, a wide range of functional groups have been well-tolerated under the current photoredox process, evading the side product formation. Potent biologically active compounds, such as CES1, 11β-HSD1 inhibitors, anti-analgesic agents, and reactive synthesis intermediates were synthesized to demonstrate the synthetic utility of the current methodology. Moreover, green chemistry metrics and Eco-scale evaluation for the current photochemical method show that the protocol is eco-friendly and highly efficient.
