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Updated: Jun 1, 2026

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
2-(2-{[2-(2-Pyridylcarbon-yl)hydrazono]meth-yl}phen-oxy)acetic acid
Bao-Yu Liu1, Zheng Liu, Guo-Rui Wang
1College of Chemical and Biological Engineering (Guilin University of Technology), Guilin 541004, People's Republic of China.
Abstract:
In the title compound, C(15)H(13)N(3)O(4), the pyridine and benzene rings are nearly coplanar [dihedral angle = 4.92 (12)°]. The maximum deviation from the best least-squares plane calculated for the main mol-ecular skeleton is 0.1722 (1) Å for the carbonyl O atom. In the crystal, inter-molecular O-H⋯O hydrogen bonds connect the mol-ecules into a chain, while π-π stacking inter-actions between the pyridine and benzene rings [centroid-centroid distance = 3.9162 (8) Å and offset angle = 27.20°] complete a two-dimensional network.
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