“…In the eighteen years that followed, Meyer and his students continued their study of the condensation of aromatic diazonium salts with 1-nitro alkanes (17), 3-nitropropene (1), and 1,3-dinitropropane (14). Duden in 1893 (9) reported a condensation with the potassium salt of dinitromethane.Bamberger and his students, for a period of eight years starting in 1894, condensed 1-nitro alkanes with aromatic diazonium salts (2,3,4,5,6). Similar work was done by Hantzsch and Kissel on nitroethane (11,12).Ponzio and collaborators studied condensations of aromatic diazonium salts with aromatic dinitromethanes (19, 20, 26), with diphenylnitromethane (25), and with trinitromethane (28, 29).…”