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Updated: Apr 30, 2026

Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
2-{(E)-[4-(Di-phenyl-amino)-phen-yl]imino-meth-yl}phenol
Jiang Chen1, Zhe-Peng Jin2, Bing-Fei Gao2
1Department of Chemistry, Bengbu Medical College, Bengbu 233030, People's Republic of China.
Abstract:
The asymmetric unit of the title Schiff base molecule, C25H20N2O, contains two independent mol-ecules. In each mol-ecule, the C=N bond is in an E conformation. The most significant difference between the two mol-ecules is seen for the dihedral angles between the meth-oxy-substituted benzene ring and the two phenyl rings, which are 85.5 (1) and 82.3 (1)° in the first mol-ecule, and 49.0 (1) and 40.4 (1)° in the second. This conformational difference is reflected in the central C=N-C C torsion angle, which is 28.7 (2)° in the first mol-ecule and -29.8 (3)° in the other. In each mol-ecule, there is an intra-molecular O-H⋯N hydrogen bond.
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