The synthesis and chemistry of a bis-pyrazolinylketone and the structure determination

Autor:	Charles A. Kingsbury, Tay-Yean Lin, Norman H. Cromwell
Rok vydání:	1985
Předmět:	chemistry.chemical_classification chemistry.chemical_compound Ketone Chemistry Computational chemistry Organic Chemistry Polymer chemistry Cyclohexanone Nuclear magnetic resonance spectroscopy Pyrolysis
Zdroj:	Journal of Heterocyclic Chemistry. 22:21-24
ISSN:	1943-5193 0022-152X
DOI:	10.1002/jhet.5570220106
Popis:	The synthesis and spectral characteristics of a bis-spiro compound: 2,6-bis(4-phenyl-3-δ1-pyrazolinyl)cyclo-hexanone are reported. Unlike literature reports, this particular δ1-pyrazoline does not readily rearrange to the 2 isomer on heating. Pyrolysis gives 2,6-bis(α-methylbenzylidene)cyclohexanone. A monopyrazolinylket-one was also isolated which is most likely an intermediate in the bis-denitrogenation. A mechanism for the denitrogenation-rearrangement is proposed.
Databáze:	OpenAIRE
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