Rates of reaction of benzylamines with 1-chloro 2.4-dinitrobenzene

Several meta and para substituted benzylamines have been prepared. The rates of reaction of benzylamine and fourteen substituted benzylamines with 1-chloro 2,4-dinitrobenzene in ethanol have been measured. The kinetics were followed by using an acid-base titration method to determine the amount of benzylamine in the reaction mixture at intervals. The logarithms of the rate constants correlate with Taft's σ° constants within the precision of the latter