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Methyl 2-{[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl-idene)(thio-phen-2-yl)meth-yl]amino}-3-phenyl-propionate. 2011

Hualing Zhu, and Xinxin Zhao, and Zhan Wang, and Junjie Ren, and Miao Zhang
Department of Basic Science, Tianjin Agricultural College, Tianjin Jinjing Road No. 22, Tianjin 300384, People's Republic of China.

In the title compound, C(25)H(23)N(3)O(3)S, an intra-molecular N-H⋯O inter-action generates an S(6) ring, which stabilizes the enamine-keto form of the compound. This S(6) ring and the pyrazole ring are essentially coplanar, making a dihedral angle of 1.49 (6)°. The bond lengths within the S(6) ring of the mol-ecule lie between classical single- and double-bond lengths, indicating extensive conjugation. The structure exhibits a thienyl-ring flip disorder, with occupancy factors in the ratio 64.7 (3):35.3 (3).

UI MeSH Term Description Entries

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