Cyclization of pyrazolones: novel synthesis of pyrano, pyrido, pyrimido and spiropyrazole derivatives

Faculty Science Year: 2018
Type of Publication: ZU Hosted Pages:
Authors:
Mohammed Juma Mohammed Aass
Journal: Journal of the Iranian Chemical Society Springer Volume:
Keywords : Cyclization , pyrazolones: novel synthesis , pyrano, pyrido,    
Abstract:
Depending on the reaction conditions, two alternative cyclizations are possible for [3 + 3] cyclocondensation of pyrazolone derivative 1a and ethyl cyanoacetate of type pyrano [2,3-c] pyrazol-6(1H)-one 2 and pyrano [2,3-c] pyrazol-4(1H)-on
    
     
 
       

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