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- W772688493 abstract "Solvolysis rate constants for methylchloroformate, methylthionochloroformate, methylthiolchloroformate and methyldithiochloroformate have been determined conductometrically in methanol, ethanol and ethanol-water mixtures and activation parameters have been derived. Results show that methylchloroformate solvolyzes through process while methyldithiochloroformate solvolyzes by process in all the solvent systems. The rate of hydrolysis decreased in the order, $CH_3S(CS)Cl>CH_3S(CO)Cl>CH_3O(CS)Cl>CH_3O(CO)Cl$ which corresponds to the order of decreasing character. In methanol, solvolyzed via the mechanism while the others solvolyzed via the process. In ethanol, however, character was dominant for all the compounds, except methyldithiochloroformate, for which character was still strong enough to accelerate the rate of ethanolysis. In ethanol-water mixtures, and solvolyzed via process in ethanol-rich region while the character increased greatly in water-rich region for the solvolysis of these compounds. The order of character for solvolysis in water-rich region was the same as the order of hydrolysis rate." @default.
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- W772688493 date "1980-01-01" @default.
- W772688493 modified "2023-09-24" @default.
- W772688493 title "Nucleophilic Substitution at a Carbooyl Carbon Atom (XI). Solvolysis of Methylchloroformate and Its Thioanalogues in Methanol, Ethanol and Ethanol-Water Mixtures" @default.
- W772688493 doi "https://doi.org/10.5229/jkes.2021.24.1.1" @default.
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