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Rapid Iodination of Xylidines in Aqueous Medium: Kinetic verification of Speculated Reactivities

Author Affiliations

  • 1 Department of Chemistry, Nowrosjee Wadia College, Pune, INDIA

Res.J.chem.sci., Volume 2, Issue (6), Pages 1-5, June,18 (2012)

Abstract

Comprehensive kinetic studies to investigate the relative nucleophilicities of the six isomers of xylidine have been carried out. Kinetic data presently obtained for iodination of xylidines in aqueous medium conclusively enlightened the order of the relative reactivities of xylidines in a quantitative manner. All the six reactions studied were found to be rapid, necessitating a special technique to follow the kinetics. The rotating platinum cathode method employed, yielded specific reaction rates that ranged from 52 to 893M-1 s-1 and energies of activation from 32.7 to 54.5 kJ mol-1 at 25.00 C and 7 pH. Stereochemical principles invoked, justified this observed reactivity order for the isomers under study. Thus the subtleties of the stereochemistry of xylidines were quantitatively ascertained using kinetics as an investigational tool.

References

  1. Pandey Bhawana and Fulekar M.H., Environmental Management- strategies for chemical disaster, Res. J. Chem. Sci., 1(1), 111-117 (2011)
  2. Berliner E., J.Chem.Edu. 43, 124 (1966)
  3. Dangat V.T., Bonde S.L., Gayakhe A.S and Ghorpade B.S., Ind. J. of Chemistry, 28A, 321-322 (1989)
  4. Kolthoff I.M. and Lingane J., J. Polarography, Interscience, New York, 1, 421 (1952)
  5. Zope V.S., Bonde S.L. and Dangat V.T., Res. J. Chem. Environ, 11 (2), (2007)
  6. De La Mare and Ridd J.H., Aromatic substitutions (Butterworths, London) (1959)
  7. Heda L.C., Sharma Rashmi and Chaudhari Pramod B., Effect of Hydrogen Bonding and Solvation of 5-Substituted Indole Carboxldehydes in Methanol-Benzene, Res. J. Chem. Sci., 1(9), 11-16 (2011)
  8. Babalola O.O., Ojo O.E. and Oloyede F.A., Hepatoprotective activity of aqueous extract of the leaves of Hyptis suaveolens (l.) Poit on acetaminophen Induced hepatotoxicity in rabbits, Res. J. Chem. Sci., 1(7), 85-88 (2011)
  9. Medjor O.W., Egharevba F., Akpoveta O.V., Ize-lyamu O.K. and Jatto E.O., Kinetic Studies of Bioremediation of Hydrocarbon Contaminated Groundwater, Res. J. Chem. Sci., 2(1), 38-44 (2012)
  10. Rao T.S., Mali S.I. and Dangat V.T., Tetrahedron 34, 205 (1978)