Jayaroopa PRABHASHANKAR, Vasanth Kumar GOVINDAPPA, Ajay Kumar KARIYAPPA

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

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 afford 3,4-diaryl-1-phenyl-4,5-dihydro-1H-pyrazole-5-carbonitrile in moderate to good yields. The structures of the cycloadducts were confirmed by spectral studies and elemental analysis.

Anahtar Kelimeler:

Pyrazoles, nitrile imines, chloramine-T, dipolar, cycloaddition

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

Keywords:

Pyrazoles, nitrile imines, chloramine-T, dipolar, cycloaddition,

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