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Updated: May 22, 2026

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
1-(Biphenyl-4-ylcarbon-yl)-3-(2-chloro-4-nitro-phen-yl)thio-urea
Abstract:
The benzene rings of the biphenyl group in the title compound, C(20)H(14)ClN(3)O(3)S, are nearly coplanar [maximum deviation = 0.20 (3) Å]. The mean plane of the biphenyl group forms a dihedral angle of 5.24 (7)° with the aromatic ring of the nitro-chloro-benzene group. Intra-molecular N-H⋯Cl, N-H⋯O and C-H⋯S hydrogen bonds stabilize the cis-trans conformation of the mol-ecule. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯S hydrogen bonds into mutually inter-woven corrugated layers parallel to (10-2).
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