Hydrolytic stability of N-Methyl-2,6-dimesitylpyrylogen bis-tetrafluoroborate

El-Idreesy, T. T., and E. L. Clennan, "Hydrolytic stability of N-Methyl-2,6-dimesitylpyrylogen bis-tetrafluoroborate", Journal of Organic Chemistry, 2011.


The synthesis and characterization of a new mesityl ring substituted pyrylogen with a substantially decreased rate of reaction with water is reported. Computational and experimental data are presented that suggest that addition of water to the pyrylium ring of this highly sterically shielded pyrylogen is reversible. On the other hand, experimental data suggest that the overall hydrolysis of this new sterically