The Kinetics and Mechanism of Grignard Reactions With Active Hydrogen Compounds

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Communications Faculty of Sciences University Ankara Series B Chemistry and Chemical Engineering
Volume:19
The Kinetics and Mechanism of Grignard Reactions With Active Hydrogen Compounds

The Kinetics and Mechanism of Grignard Reactions With Active Hydrogen Compounds

Authors : Celâl TÜZÜN

Pages : 0-0

View : 29 | Download : 9

Publication Date : 1972-01-01

Article Type : Research Paper

Abstract :The kinetics of Zerewkinoff reaction between ethyl magnesium bromide and amines, alcohols and 1- alkynes, which are very weak Bronsted acids, was investigated in detail by gas evolution method in diethyl ether at 25 °C. The reaction was found tobe second order overall and first order with respect to each reactant. SEi mechanism insert ignore into journalissuearticles values(int- ramolecular electrophilicsubstitution);, which the transition State was believed to involve both electrophilic attack by active hydrogen at the a carbon of ethyl magnesium bromide and nucleophilic attack by the conjugate base of very weak acid at the magnesium atom, was proposed.
Keywords : Kinetics, Mechanism, Hydrogen

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