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Updated: Jun 1, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
Published on: November 15, 2017
6,6'-Dieth-oxy-2,2'-[propane-1,3-diyl-dioxy-bis(nitrilo-methyl-idyne)]diphenol
Li Wang1, Yin-Xia Sun, Jun-Feng Tong
1School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou 730070, People's Republic of China.
Abstract:
The complete mol-ecule of the title compound, C(21)H(26)N(2)O(6), is generated by a crystallographic twofold axis and adopts a trans configuration with respect to the azomethine group. The two benzene rings are almost perpendicular to one another, making a dihedral angle of 89.53 (3)°. In the mol-ecular structure, pairs of intra-molecular O-H⋯N hydrogen bonds generate two six-membered rings. The crystal structure is further stabilized by inter-molecular C-H⋯O hydrogen bonds, which link four adjacent mol-ecules into a network structure.
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