64495-58-5Relevant articles and documents
Ball-milling synthesis of sulfonyl quinolines: Via coupling of haloquinolines with sulfonic acids
Liu, Xiao-Wen,Ma, Hui,Wang, Jia-Qian,Xie, Long-Yong,Zhu, Qi
supporting information, p. 7589 - 7593 (2021/10/12)
An efficient and practical approach for the synthesis of sulfonyl quinolines via ball milling promoted coupling of haloquinolines with sulfonic acid under metal-, solvent- and additive-free conditions has been developed. In contrast to the solvent-based s
Hantzsch Ester as a Visible-Light Photoredox Catalyst for Transition-Metal-Free Coupling of Arylhalides and Arylsulfinates
Zhu, Da-Liang,Wu, Qi,Li, Hai-Yan,Li, Hong-Xi,Lang, Jian-Ping
supporting information, p. 3484 - 3488 (2020/03/05)
Diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (HEH) has been utilized as a visible-light photoredox catalyst for the cross coupling of arylhalides and arylsulfinates without transition metal, sacrificial agent, and mediator. This method is compatible with various functional groups and provides diaryl sulfones in good to high yields. Mechanistic studies indicate that this reaction undergoes the stepwise light irradiation of HE?, single electron transfer (SET) in donor–acceptor complex (DAC) from *HE? to arylhalide, trapping of aryl radical with sulfinate, and SET oxidation of sulfone radical anion by HE. to sulfone by the DAC method.
SO2F2-mediated deoxygenative C2-sulfonylation of quinoline N-oxides with sodium sulfinates
Ai, Chengmei,Liao, Xudong,Zhou, Yi,Yan, Zhaohua,Lin, Sen
supporting information, (2020/12/07)
A mild and efficient method for deoxygenative C2-sulfonylation of quinoline N-Oxides in the presence of a base has been developed employing extremely inexpensive SO2F2 as an activator and sodium sulfinate as nucleophilic sulfonylation source. It is noteworthy that the reaction proceeded well under metal- and oxidant-free conditions to give a variety of 2-sulfonylquinolines in medium to good yields.