Intramolecular catalysis. Part 3. The hydration and ionisation of o-phthalaldehyde
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 5,p. 642-645
- https://doi.org/10.1039/p29790000642
Abstract
o-Phthalaldehyde hydrates to form a bridged (cyclic) monohydrate. The hydrate exists as a cis-trans mixture, with the equilibrium constant for hydration, KH, at 20 °C in water being 9.39. The pka value of o-phthalaldehyde hydrate at 20 °C in water is 12.08. The hydration and ionisation have been investigated at several temperatures, as has the rate of the uncatalysed hydration. A mechanism for the uncatalysed hydration is suggested.Keywords
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