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Updated: May 13, 2026

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
[2-(1,3-Benzothia-zol-2-ylmeth-oxy)-5-bromo-phen-yl](4-chloro-phen-yl)methanone
Susanta K Nayak1, K N Venugopala, Thavendran Govender
1Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3-20133 Milan, Italy.
Abstract:
In the title compound, C21H13BrClNO2S, the dihedral angle between the planes of the benzothia-zole and chloro-phenyl-methanone groups is 71.34 (6)°. In the crystal, weak C-H⋯N hydrogen bonds lead to dimer formation, whereas Br⋯Cl short contacts [3.4966 (11) Å] form infinite chains along the a-axis direction. Further, the C-H⋯O, C-H⋯π and π-π [centroid-centroid distance = 3.865 (2) Å] inter-actions stabilize the three-dimensional network.
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