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Updated: Jun 1, 2026

Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
4-(4-Bromo-benzene-sulfonamido)benzoic acid
Islam Ullah Khan1, Ghulam Mustafa, Muhammad Nadeem Arshad
1Materials Chemistry Laboratory, Department of Chemistry, Government College University, Lahore, Pakistan.
Abstract:
The title compound, C(13)H(10)BrNO(4)S, belongs to the sulfonamide class of organic compounds. The two aromatic rings are inclined at 34.30 (15)° to one another, and the carboxyl substituent lies in the plane of the benzene ring to which it is bound (maximum deviation = 0.004 Å). In the crystal structure, charactersitic carboxylic acid dimers are formed through O-H⋯O hydrogen bonds. These dimers are linked into rows down a by N-H⋯O inter-actions. Additional C-H⋯O contacts further stabilize the structure, and a close Br⋯Br(x, -y + 1, -z + 1) contact of 3.5199 (9) Å is also observed.
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