Enamine Configuration of 5-Methyl-2-phenyl-4-[(Z)-3-tolylamino-phenylmethylene]pyrazol-3(2H)-one

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Compound 5-methyl-2-phenyl-4-[(Z)-3-tolylamino-phenylmethylene]pyrazol-3(2H)-c = 12.035(4)(。A), α = 97.896(6), β = 103.865(6), γ = 107.950(6)°, Mr= 367.44, Z = 2, V= 993.2(6)(。A)3,Dc = 1.229 g/cm3,μ(MoKα) = 0.077 mm 1 and F(000) = 388.The structure was refined to R =0.0444 and wR = 0.1199 for 2903 observed reflections (I > 2σ(I)).The results of 1H NMR and single-crystal X-ray diffraction studies showed the enamine character of the compound.The strong intramolecular hydrogen bonds in the large conjugate system, together with weak intermolecular supramolecular network.
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