Synthesis, Characterization, Thermal and Antimicrobial studies of N-substituted Sulfanilamide derivatives

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • University of Jyväskylä
  • St. Joseph Engineering College
  • National Institute of Technology Karnataka
  • Aarhus University
  • Canara Engineering College

Abstract

Four sulfanilamide derivatives N-[4-(phenylsulfamoyl)phenyl]acetamide (1), 4-amino-N-phenylben-zenesulfonamide (2), N-[4-(phenylsulfamoyl)phenyl]benzamide (3) and N-(4-[(3-chlorophenyl)sulfamoyl]phenylbenzamide (4) were synthesized and characterized by Infra-Red (IR), Nuclear Magnetic Resonance (NMR) and UV-visible (UV-Vis) spectra. Also Liquid Chromatographic (LCMS) and High Resolution Mass Spectrometric (HRMS) methods were used. Crystal structures of 1-4 were determined by single crystal X-ray diffraction (XRD) and their conformational and hydrogen bond (HB) network properties were examined with survey of the literature data. Compounds 1 and 2 crystallize in the same orthorhombic Pbca symmetry with equivalent molecular conformation (tilted V-shape) but showed distinct packing and hydrogen bonding models. Compounds 3 and 4 crystallize in monoclinic and triclinic crystal systems, albeit exhibiting identical molecular conformation (L-shaped). Same donor acceptor pairs both on 3 and 4 result to different kind of HE network. Thermogravimetric (TG) and differential scanning calorimetric (DSC) methods were used to evaluate thermal properties of the substances. All sulfanilamide derivatives have melting points between 195-227 degrees C, initiation of thermal decomposition between 259-271 degrees C and enthalpies of fusion Delta H-fus(T), = 38.96, 36.60, 46.23 and 44.81 kJ mol-1 were determined for 1-4, respectively. The derivatives were screened for their antibacterial and antifungal activities against various bacterial and fungal strains. It is observed that there is no significant antibacterial activity with the introduction of the benzene ring to CO-NH group or SO2-NH moiety, and none of the compounds exhibited antifungal activity. (C) 2013 Elsevier B.V. All rights reserved.

Details

Original languageEnglish
Pages (from-to)280-290
Number of pages11
JournalJOURNAL OF MOLECULAR STRUCTURE
Volume1060
Publication statusPublished - 24 Feb 2014
MoE publication typeA1 Journal article-refereed

    Research areas

  • Synthesis, Sulfanilamides, Antimicrobial activity, X-ray diffraction, Crystal structure, Thermal analysis, CARBONIC-ANHYDRASE INHIBITORS, CRYSTAL-STRUCTURE, SULFONAMIDE DERIVATIVES, DESIGN, SUBLIMATION, SOLUBILITY, SOLVATION, ACID

ID: 3308988