Abstract
The reaction between salicylaldehyde and primary amines in chloroform is utilised for analysis of binary mixtures of primary amines by the differential rate technique. The method is applicable in the presence of secondary as well as tertiary amines. The difference in the rates of addition of secondary amines to methyl acrylate in methanol is utilised for resolution of binary and ternary mixtures of secondary amines. The method is applicable in the presence of tertiary, but not primary, amines. In either case, the second-order reaction is followed by non-aqueous titration, and the resolution is effected by graphical extrapolation from the usual second-order plots.
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