18693-13-5Relevant articles and documents
Copper-Mediated Direct Sulfenylation of 4-Hydroxyquinolinones and 4-Hydroxypyridones with Aryl Thiols via a C-H Functionalization Process
Guo, Tao,Wang, Hongyan
, p. 1845 - 1851 (2017)
An efficient approach for the direct sulfanylation of 4-hydroxyquinolinones and 4-hydroxypyridones with aryl thiols in the presence of CuI/DMSO has been developed. The substrate scope is broad, allowing facile synthesis of a range of structurally diverse 3-sulfanyl-4-hydroxyquinolinones and 3-sulfanyl-4-hydroxypyridones in good efficiency.
Novel Method for Preparing 4-hydroxy-3-sulfanylcoumarin Derivatives or 4-hydroxy-3-sulfanylquinoline Derivatives and Their Compounds Made Thereby, and Its Use
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Paragraph 0097; 0109; 0110; 0145; 0146, (2018/10/16)
The present invention relates to 4-hydroxy-3-sulfanylcoumarin derivatives represented by chemical formula 1, 4-hydroxy-3-sulfanylquinolinone derivatives represented by chemical formula 2, novel preparation methods thereof, and uses thereof. According to the present invention, the preparation methods can reduce the preparation cost by utilizing inexpensive catalysts, and at the same time, can yield desired products with high yield. In the chemical formula 1, R_1 to R_4 are as described in the present invention. In the chemical formula 2, R_5 to R_7 are as described in the present invention.COPYRIGHT KIPO 2018
Copper(I) Bromide-Dimethyl Sulfide-Catalyzed Direct Sulfanylation of 4-Hydroxycoumarins and 4-Hydroxyquinolinones with Arylsulfonylhydrazides and Selective Fluorescence Switch- On Sensing of Cadmium(II) Ion in Water
Paul, Sanjay,Shrestha, Rajeev,Edison,Lee, Yong Rok,Kim, Sung Hong
supporting information, p. 3050 - 3056 (2016/10/09)
An efficient protocol for the direct sulfanylation of various 4-hydroxycoumarins and 4-hydroxyquinolinones in good yield with arylsulfonylhydrazides as sulfanylating agents was developed via copper(I) bromide?dimethyl sulfide-catalyzed S–O, S–N bond cleavage and C–S cross-coupling reactions. A highly selective fluorescence turning-on sensing of cadmium(II) ions in water using the synthesized 3-sulfanyl-4-hydroxycoumarin derivative was also investigated. (Figure presented.).