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Methyl N-[(4-chloro-phen-yl)(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl-idene)meth-yl]glycinate. 2009

Xin Zhang, and Meng Huang, and Cong Du, and Dan Chen
College of Chemistry and Life Science, Tianjin Normal University, Tianjin 300387, People's Republic of China.

The title compound, C(20)H(18)ClN(3)O(3), is in an enamine-keto form, stabilized by two strong intra-molecular N-H⋯O hydrogen bonds. The pyrazole ring is oriented at dihedral angles of 4.13 (3) and 85.60 (3)° with respect to the aromatic rings. The dihedral angle between the aromatic rings is 81.79 (3)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into double chains, which are further linked by weak C-H⋯π inter-actions, forming a two-dimensional network.

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