Aki, Sudhir N. V. K. published the artcileGeneration of Xanthenium and 9-Phenylxanthenium Carbocations in Subcritical Water and Reactivity with Amylamine, Product Details of C19H14O2, the publication is Journal of Physical Chemistry A (2001), 105(34), 8046-8052, database is CAplus.
The ability of subcritical water to support ionic chem. is evident from the successful generation of 9-R-xanthenium (R = H and C6H5) carbocations at temperatures up to 330° from their resp. alc. precursors using laser flash photolysis. The intrinsic carbocation decay in the solvent was found to follow simple Arrhenius behavior at all temperatures, from ambient up to 330 °C. In addition, we determined the bimol. rate constants for the reactions of xanthenium cation and 9-phenylxanthenium cations with amylamine, a neutral nucleophile. The activation energies of the two reactions were 21.6 ± 1.2 kJ mol-1 and 18.2 ± 3.9 kJ mol-1, resp. More importantly, we found that the rate equations determined at high temperatures extrapolated extremely well to ambient conditions. Thus, we conclude that for ion/neutral isoCoulombic reactions, it would be reasonable to use low-temperature Arrhenius parameters to predict the rate constants in water at higher temperatures Finally, we found that the effect of pressure on the bimol. rate constants at 22-330° was negligible.
Journal of Physical Chemistry A published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Product Details of C19H14O2.
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