The enethiolate anions corresponding to thioacetaldehye and thioacetone, synthesized via elimination reactions, undergo H/D exchange reactions, demonstrating the intermediacy of the thiocarbonyl tautomers, and proton transfer reactions, leading to ΔGacid0[CH3CH![[double bond, length half m-dash]](https://www.rsc.org/images/entities/char_e006.gif)
S]= 341 ± 3 kcal mol–1 and ΔGacid0[(CH3)2CS]= 344 ± 3 kcal mol–1(1 kcal = 4.184 KJ).
L. Zhang and J. J. Grabowski, J. Chem. Soc., Chem. Commun., 1989, 1819 DOI: 10.1039/C39890001819
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