Effect of various acids at different concentrations on the pinacol rearrangement
Magnetic Resonance Imaging
The formation of side products in the pinacol-pinacolone rearrangement was studied as a function of concentration and strength of various aqueous acids using 1H NMR spectroscopy. In all cases, pinacolone was the principal product and in most cases, its relative yield decreased with respect to 2,3-dimethyl-1,3-butadiene, when the acid concentration was lowered or the corresponding conjugate base was added. © 2002 Elsevier Science Ltd. All rights reserved.
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