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Catalytic activities of Schiff base aquocomplexes of copper(II) towards hydrolysis of amino acid esters

✍ Scribed by Haribal Chakraborty; Niranjan Paul; M. Lutfor Rahman

Book ID
104636302
Publisher
Springer
Year
1994
Tongue
English
Weight
290 KB
Volume
19
Category
Article
ISSN
0340-4285

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✦ Synopsis

Solid aquo Cu II complexes of Schiff bases derived from amino acids have been prepared and characterized. Using a pH-stat method, the kinetics of base hydrolysis of the amino acid esters H2NCH2CO2Me.HC1 (GE), (HO)-C6H4CH2(NH2)CO2Me.HC1 (TE), MeS(CH2)2CH(NH2)-CO2Me.HC1 (ME), HSCH2CH(NH2)CO2Et.HC1 (CE), C3HaNzCH2CH(NHE)CO2Me.2HC1 (HE) and [--SCH 2-CH(NH2)CO2Me] 2" 2HC1 (CysE) have been studied. The complexes enhanced the rate of hydrolysis substantially, the values of the second-order rate constants being some 10 50 times greater than those obtained in the presence of the simple Cu II ion.

πŸ“œ SIMILAR VOLUMES

Kinetics of base hydrolysis of novel low
Kinetics of base hydrolysis of novel low spin Fe(II) amino acid Schiff base chelatesβ€”hydrophobic structural effects
✍ Ali M. Shaker; Lobna A. E. Nassr πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 360 KB

## Abstract The reactivity against OH^βˆ’^ ion of some novel Fe(II) complexes of Schiff base ligands derived from salicylaldehyde or __o__‐hydroxynaphth‐aldehyde and some variety of amino acids has been examined in aqueous and aqua‐ethanol mixtures. The rate law and relevant mechanism were assumed. B