Kinetic Evidence for High Reactivity of 3-Nitrophenylboronic Acid Compared to Its Conjugate Boronate Ion in Reactions with Ethylene and Propylene Glycols
Inorganic Chemistry2008Vol. 47(5), pp. 1417–1419
Citations Over TimeTop 10% of 2008 papers
Abstract
The rate constants for a boronate ion were determined for the first time using the reaction systems of 3-nitrophenylboronic acid (3-NO2PhB(OH)2) with ethylene glycol (EG) and propylene glycol (PG) in an alkaline solution: the rate constants (25 degrees C, I = 0.10 M) for the reactions of 3-NO2PhB(OH)3- are 1.2 M(-1) s(-1) (EG) and 1.5 M(-1) s(-1) (PG), which are at least 10(3) times smaller than those for the reactions of 3-NO 2PhB(OH)2 [1.0 x 10(4) M(-1) s(-1) (EG) and 5.8 x 10(3) M(-1) s(-1) (PG)].
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