Synthesis and radioprotective activity of the products of reactions between cyclic anhydrides of β-(oxysulfinyl)carboxylic acids and amines
作者:T. P. Vasil'eva、N. I. Lisina、V. V. Znamenskii
DOI:10.1007/bf02464108
日期:1997.5
pharmacological activity of some derivatives of 13-(oxysulfinyl)carboxylic acids, ineluding their sodium and ammonium salts, esters and amides, in which the radioprotective properties were observed only in aminesalts and amides [1, 2]. The radioproteetive activity and toxicity of these compounds were dependent on the structure of both acid and amine. Among the sulfmocarboxylie acids studied, the most promising
Nickel-catalyzedcycloaddition of alkynes and 2-sulfobenzoic anhydrides gives highly functionalized thiochromenones. The reaction undergoes a deoxygenative rather than decarbonylative pathway and shows advantages of an excellent isolated yield (up to 95%), high reaction efficiency, and high regioselectivity. As one of the resulted products, 2,3-di(triphenylamine)-thiolchromenone possesses a typical
Benzothiazole-Derived Sulfones and Sulfoxides as Reactive Templates for Biothiols and Sulfane Sulfurs
作者:Shi Xu、Jessica R. Knight、Brock J. Brummett、Meg Shieh、Qi Cui、Yingying Wang、Geat Ramush、Ming Xian
DOI:10.1021/acs.orglett.2c00734
日期:2022.4.8
In this work we studied the reactions of benzothiazole sulfones and sulfoxides toward reactive sulfur species. The reaction of thiols with benzothiazole sulfones produces sulfinic acids (RSO2H), which can further react with sulfane sulfurs to form thiosulfonic acids (RSO2SH). This was used to design fluorescent sensors for hydrogen polysulfides. The reaction of thiols with benzothiazole sulfoxides
Sulfur-containing heterocycles 14. New synthesis of cyclic anhydrides of 3-sulfinocarboxylic acids
作者:T. P. Vasil’eva、G. T. Shchetnikov、S. N. Osipov
DOI:10.1007/s11172-009-0349-z
日期:2009.12
Abstract3-Chlorosulfinylalkanoyl chlorides undergo cyclization into the corresponding five-membered mixed anhydrides (1,2-oxathiolan-5-one 2-oxides) under the action of sodium or mercury acetates. 2-Chlorosulfinylbenzoyl chloride gives 3H-2,1-benzoxathiol-3-one 1-oxide in high yield.