38307-42-5Relevant articles and documents
A rapid and visible colorimetric fluorescent probe for benzenethiol flavor detection
Wang, Hao,Wu, Xiaoming,Yang, Shaoxiang,Tian, Hongyu,Liu, Yongguo,Sun, Baoguo
, p. 322 - 328 (2019/02/24)
Benzenethiols are a class of flavoring ingredients used in the food, pharmaceutical, cosmetics and chemical industries. A rapid and visible colorimetric fluorescent probe was developed for the detection of benzenethiol flavors. It provides rapid quantitative detection of benzenethiols at low levels, down to a limit of 10 nM. Test paper containing the probe changes color according to benzenethiol concentration (from colorless to pink, visible with the naked eye). The probe was also successfully used to test benzenethiol concentrations in real food samples. This study demonstrates that this novel probe can be employed as a benzenethiol testing tool.
Formation of Allyl and Cyclopropylcarbinyl Sulphides in the Regiospecific Reactions of Arenesulphenyl Chlorides with Allyl- and But-3-enyl-cobaloximes
Ashcroft, Martyn R.,Gupta, B. Dass,Johnson, Michael D.
, p. 2021 - 2025 (2007/10/02)
Allyl- and substituted-allyl-bis(dimethylglyoximato)pyridinecobalt(III) complexes react regiospecifically with 2,4-dinitrobenzenesulphenyl chloride to give moderate (30-45percent) yields of the corresponding rearranged allyl 2,4-dinitrophenyl sulphides.The corresponding rearranged allyl derivative of the dimethylglyoxime is a major by-product.But-3-enylbis(dimethylglyoximato)pyridinecobalt(III) complexes also react regiospecifically to give cyclopropylmethyl 2,4-dinitrophenyl sulphides.The reactions are interpreted in terms of an electrophilic attack of the sulphur on the γ- and δ-carbon of the allyl- or butenyl-ligand, respectively, with concurrent or subsequent loss of cobaloxime(III), and with concurrent or subsequent cyclisation of the organic ligand in the case of the butenyl complexes.Benzenesulphenyl bromide and chloride react much more slowly and their reaction with allylbis(dimethylglyoximato)pyridinecobalt(III) has been briefly explored.