Molecular and vibrational structure of thiosulfonate S-esters

Luu, Thi Xuan Thi; Duus, Fritz; Spanget‐Larsen, Jens

doi:10.1016/j.molstruc.2013.06.033

Cited by 3 publications

(2 citation statements)

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“…Furthermore, all of the thiosulfonates were also analyzed by IR spectroscopy in order to obtain information concerning the occurrence of conformational isomerism. [59] The observed 1 H and 13 C NMR spectroscopic data for the eight thiosulfonate S-esters synthesized are listed below, and all of them were found compatible with those reported in the literature. [60][61][62] …”

Section: Spectroscopic Datasupporting

confidence: 76%

Fast and efficient green synthesis of thiosulfonate S-esters by microwave-supported permanganate oxidation of symmetrical disulfides

Luu

Nguyen

Lê

et al. 2015

Journal of Sulfur Chemistry

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Potassium permanganate absorbed on copper(II) sulfate pentahydrate has been found to be an efficient, inexpensive, and green oxidation agent for the synthesis of "symmetrical" thiosulfonate S-esters by oxidation of the corresponding symmetrical disulfides. The oxidation reactions were carried out under solvent-free reaction conditions within 15 min under the influence of microwave irradiation, as well as (for comparison) supported by conventional heating, to afford yields of the thiosulfonate S-esters in the range of 60-83%. The oxidation reaction appears to proceed (at least partly) via an intermediate symmetrical vic-disulfoxide. KMnO 4 /CuSO 4 · 5H 2 O microwave irradiation R S R O O O O S R S R S R S R S

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Section: Spectroscopic Datasupporting

confidence: 76%

Fast and efficient green synthesis of thiosulfonate S-esters by microwave-supported permanganate oxidation of symmetrical disulfides

Luu

Nguyen

Lê

et al. 2015

Journal of Sulfur Chemistry

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“…This band may correspond to the S-S vibrations of organic disulfides [34]. On the other hand, the two bands at 1342 and 1142 cm −1 can be assigned to the asymmetric and symmetric stretching modes of S=O in thiosulfonate S-esters [35]. The already mentioned band at 2042 cm −1 seems to originate from some organic isothiocyanate or an inorganic isothiocyanate ion [36].…”

Section: Physicochemical Characterizationmentioning

confidence: 99%

Sulforaphane-assisted preparation of tellurium flower-like nanoparticles

et al. 2019

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A new method for the fabrication of flower-like tellurium nanoparticles is reported. It is based on the reduction of tellurite precursor by products generated during decomposition of sulforaphane at elevated temperature in aqueous medium. These species and other organic molecules present in the reaction mixture are being adsorbed on the surface of tellurium nuclei and govern further tellurium growth in the form of nanoflowers. The obtained particles have been characterized by a range of physicochemical techniques. It was shown that the average size of the nanoflower particles is ca. 112 nm, and they are composed of smaller domains which are ca. 30 nm in diameter. The domains are crystalline and consist of trigonal tellurium as shown by x-ray diffraction, Raman spectroscopy and high resolution transmission electron microscopy. The tellurium nanoflowers were examined from the perspective of their potential anticancer activity. The in vitro cell viability studies were conducted on breast cancer (MDA-MB-231, MCF-7) and normal cell lines (MCF-10A) employing MTT and CVS assays. It was shown, that the nanoflowers exhibit considerable cytotoxicity against cancer cells which is ca. 3–7 times higher than that observed for reference normal cells. The preliminary in vivo investigations on rats revealed that the nanoflowers accumulate predominantly in pancreas after intraperitoneal administration, without observable negative behavioral effects.

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thiosulfonates

Boncli¹

2020

Catalysis From a to Z

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Molecular and vibrational structure of thiosulfonate S-esters

Cited by 3 publications

References 20 publications

Fast and efficient green synthesis of thiosulfonate S-esters by microwave-supported permanganate oxidation of symmetrical disulfides

Fast and efficient green synthesis of thiosulfonate S-esters by microwave-supported permanganate oxidation of symmetrical disulfides

Sulforaphane-assisted preparation of tellurium flower-like nanoparticles

thiosulfonates

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