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• 92918-51-9 α,α'-bis(spiro(4-phenyl-1-pyrazoline))cyclohexanone 

Relevant academic research and scientific papers

Syntheses and Pyrolysis of Some α,α'-Bis(spiro(4-aryl-1-pyrazoline))cycloalkanones

α,α'-Bis(spiro(4-aryl-1-pyrazoline))cycloalkanones (IIa-m) have been synthesized through cycloaddition of diazomethane to α,α'-diarylidenecycloalkanones (Ia-m) which, in turn, are prepared by the aldol condensation of cyclopentanones and cyclohexanones with arylaldehydes and furfuraldehyde.Pyrolysis of bis-spiro compounds yields methyl dienes (VIa-c, l) with expanded ring systems in some cases and in one case formation of cyclopropane (VIII) without ring expansion is observed.