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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 5
BKCSDE 19(5)
May 20, 1998

Title	Solvent Effect on the Reactions of DANSYL and BANSYL Chlorides with Substituted Pyridines
Author	Dae Dong Sung*, Dong Hyo Kang, Jeong Ah Chang, Sung Bae Park, Zoon Ha Ryu
Keywords
Abstract	Solvent effects on the reactions of DANSYL and BANSYL chlorides with substituted pyridines have been investigated using two parameters of Taft's solvatochromic correlation and four parameters of Kirkwood-Onsager, Parker, Marcus, Hildebrand equation. The acetonitrile molecules accelerate charge separation of the reactants and stabilize the transition state. The coefficient of the solvent parameters provide a good information to predict and to analyze the reaction mechanism. The nucleophilic substitution reaction of DANSYL and BANSYL chlorides with substituted pyridines are ruled by the contribution of the change in dipole moment term and polarity-polarizability term.
Page	561 - 564
Full Text	PDF

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