Abstract
Condensation of dimethyl and diethyl acetylenedicarboxylate with thioacetamides gave the corresponding alkyl (3-oxo-2,3-dihydrothiophen-2-ylidene)- and (4-oxothiazolidin-5-ylidene)acetates. Treatment of these compounds with zinc in acetic acid resulted in reduction of the exocyclic double bonds. The products can be used in membrane processes as sodium cation carriers.
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Kosterina, M.F., Morzherin, Y.Y., Kramarenko, O.A. et al. Synthesis and Complexing Properties of Alkyl (3-Oxo-2,3-dihydrothiophen-2-ylidene)- and (4-Oxothiazolidin-5-ylidene)acetate Derivatives. Russian Journal of Organic Chemistry 40, 866–869 (2004). https://doi.org/10.1023/B:RUJO.0000044550.62124.94
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DOI: https://doi.org/10.1023/B:RUJO.0000044550.62124.94