Abstract: Rate constants for hydration of the oxocarbenium ions derived from a series of carbonyl compounds have been determined from common ion inhibition of the solvolysis of the corresponding a-azido ethers by trapping of the oxocarbenium ion intermediate with added azide ion, assuming k,,= 5 X lo9 M-'s-': acetophenone, kHoH= 5 X lo'; acetone, 1 X lo9; 4methoxybutanone, 2 X lo9; methoxyacetone, 4 X lo9; benzaldehyde, 2 X lo9; ...
