Synthesis of 3,4-diaryl-1-phenyl-4,5-dihydro-1$H$-pyrazole-5-carbonitriles via 1,3-dipolar cycloaddition reactions | Zendy

Jayaroopa Prabhashankar | Zendy; Vasanth Kumar Govindappa | Zendy; K. Ajay Kumar | Zendy

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Synthesis of 3,4-diaryl-1-phenyl-4,5-dihydro-1$H$-pyrazole-5-carbonitriles via 1,3-dipolar cycloaddition reactions

Author(s) -

Jayaroopa Prabhashankar,

Vasanth Kumar Govindappa,

K. Ajay Kumar

Publication year - 2013

Publication title -

turkish journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 1303-6130

pISSN - 1300-0527

DOI - 10.3906/kim-1209-52

Subject(s) - chemistry , nitrile , pyrazole , dehydrogenation , cycloaddition , aldehyde , medicinal chemistry , catalysis , 1,3 dipolar cycloaddition , organic chemistry

Nitrile imines generated by the oxidative dehydrogenation of aromatic aldehyde phenylhydrazones with chloramine-T as a catalytic dehydrogenating agent were trapped in situ by 4-methoxy cinnamonitrile to aord 3,4- diaryl-1-phenyl-4,5-dihydro- 1H -pyrazole-5-carbonitrile in moderate to good yields. The structures of the cycloadducts were conrmed by spectral studies and elemental analysis.

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