45581-24-6Relevant academic research and scientific papers
Comparison of the Effect of Methyl and Phenyl Substituents on the Stabilities of Some Carboxonium Ions. Stability Decreases Associated with Increasing Charge Delocalization
Larsen, John W.,Bouis, P.A.,Riddle, Charles A.
, p. 4969 - 4973 (2007/10/02)
The effect of the phenyl and methyl groups on the stabilities of acylium ions in FSO3H and dialkoxycarbonium ions in sulfuric acid has been measured calorimetrically.As with other alkoxycarbonium ions previously studied, the formation of the methyl-substituted cations is more exothermic than the formation of phenyl-substituted cations.Resonance stabilization of the starting molecules is ruled out as an explanation.Whatever the reason, all carboxonium ions studied are more stable when methyl substituted than when phenyl substituted.
