The Nature of the Tricyclic Dimer Formed from Acetonylacetone and Hydrazine: An Application of ¹³C Nuclear Magnetic Resonance

Abstract

The structure of the dimer formed from acetonylacetone and hydrazine has been re-examined. On the basis of chemical and spectroscopic data, a covalent tricyclic structure is proposed.La structure du dim2re formt B partir de I'acetylacttone et de I'hydrazine a t t t reexaminee. Sur la base de donntes chimiques et spectroscopiques, une structure covalente tricyclique est proposte.

The Synthesis of a 5,6-Dihydropyridazine

“…Condensation of acetonylacetone with liydrazine has been shown to give, instead of the expected dihydropyridazine, a di11iet.i~ product 6 (6). Under alkylating or arylating conditions, this substance behaves as would be expected of the monomer (6) indicating a ready reversibility.…”

“…The compound was prepared as previously described (6). It is stable for prolonged periods when stored at 0" under nitrogen.…”