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Research Article
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Nucleophilic Cleavage of Substituted Benzyltrimethylsilanes using Tetraalkylammonium Fluoride in DMSO-H2O Media |
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F.M. Mahmoud ,
M.A. Al-Nuri
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J.A. Daraghmah
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ABSTRACT
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The nucleophilic cleavage of substituted benzyltrimethyl-silanes in DMSO-H2O media using tetraalkylammonium fluoride, TAAF, has been studied. The observed rate constants, pseudo first order rate constants, activation, and thermodynamic parameters have been reported. A mechanism for such cleavage has been proposed. The results fit well Hammett equation. The reaction constant, p, value of (6.7) has been reported. The p value is consistent with a substantial negative charge developing in the transition state.
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REFERENCES |
1: Eabron, C., 1960. Oganosilicon Compounds. Butterworth, London.
2: Eabron, C. and R. Bott, 1968. Organometallic Compounds of the Group IV Elements. M. Dekker, New York, pp: 402-407.
3: Exner, O., 1972. Advances in Linear Free Energy Relationships. Plenum Press, New York.
4: Jones, J., 1973. Ionization of Carbon Acid. Academic Press Inc., London.
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