Some Heterocyclic-Substituted Hydrazines The condensation of a 2-or 4-chloroquinoline or of 2-amino-4-chloropyrimidine with benzenesulfonhydrazide was carried out in two ways. Refluxing a mixture of one mole of the halogen compound and two moles of benzenesulfonhydrazide in alcohol for two to six hours gave 40-50% yields of condensation product as the hydrochloride. In confirmation of the observations of Banks' it was found ...