Andrey M. Chibiryaev, Ivan V. Kozhevnikov, Oleg N. Martyanov
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High-temperature S–S, S–O, and S–C bond transfer hydrogenolysis by lower alcohols in continuous flow mode
The hydroconversion of model organosulfur compounds with different formal oxidation states of sulfur (thiophene, dimethyl disulfide, dimethyl sulfoxide, dimethyl sulfone, sulfolane, and dimethyl sulfate) was mimicked under transfer hydrogenation (TH) reaction conditions in supercritical methanol and isopropanol. The reactions were carried out in a continuous flow reactor at 250 °C and 350 °C. At 350 °C, only dimethyl disulfide and dimethyl sulfoxide underwent complete or nearly complete conversion within 5 min of contact time, mainly by reductive cleavage of S–S, S–O, and S–C bonds to form dimethyl sulfide MeSMe and methyl mercaptan MeSH.
Graphical Abstract
Description
Simple organosulfur compounds with different formal oxidation states of sulfur in their molecules were studied in high-temperature transfer hydrogenation reaction with supercritical methanol and isopropanol in continuous flow mode.
期刊介绍：
The main focus of the journal is flow chemistry in inorganic, organic, analytical and process chemistry in the academic research as well as in applied research and development in the pharmaceutical, agrochemical, fine-chemical, petro- chemical, fragrance industry.
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