Solvent effects on the syn-anti isomerization rates of hydrazones of acetone |
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| Authors: | CI Stassinopoulou C Zioudrou GJ Karabatsos |
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| Institution: | Nuclear Research Centre “Demokritos”, Aghia Paraskevi, Athens, Greece |
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| Abstract: | The coalescence temperature for the C-methyl peaks in the NMR spectra of hydrazones of acetone are above 200°, indicating an energy barrier for syn-anti isomerization greater than 28 kcal mole?1. the presence of halogenated compounds decreases the energy barrier, due to the formation of a charge transfer complex between the hydrazone acting as a donor and the halogenated compound acting as the electron acceptor. |
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| Keywords: | to whom reprint should be addressed |
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