Solvent effects on the rates of hydrolysis of phosphonium ylides and salts

1975 ◽  
pp. 134 ◽  
Author(s):  
Andrew Schnell ◽  
John C. Tebby
Keyword(s):  
Solvent Effects ◽  
Hydrolysis Of

Solvent effects on the acid catalysed hydrolysis of benzamide, N-methylbenzamide, and NN-dimethylbenzamide

1972 ◽  
pp. 1869 ◽  
Author(s):  
C. A. Bunton ◽  
S. J. Farber ◽  
A. J. G. Milbank ◽  
Charmian J. O'Connor ◽  
T. A. Turney
Keyword(s):  
Solvent Effects ◽  
Hydrolysis Of

Reactivity of base catalysed hydrolysis of 2-pyridinylmethylene-8-quinolinyl-Schiff base iron(II) iodide complexes: solvent effects

2013 ◽  
Vol 67 (4) ◽  
Author(s):  
Ahmad Mohamad ◽  
Mohamed Adam
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Solvent Effects ◽  
Base Hydrolysis ◽  
Iodide Ions ◽  
Ligand Structure ◽  
Solvation Parameters ◽  
Kinetics Of ◽  
Hydrolysis Of ◽  
Direct Condensation

AbstractThree ligands of 2-pyridinylmethylene-8-quinolinyl (L1), methyl-2-pyridinylmethylene-8-quinolinyl (L2), and phenyl-2-pyridinylmethylene-8-quinolinyl (L3), Schiff bases were synthesised by direct condensation of 8-aminoquinoline with 2-pyridinecarboxaldehyde, 2-acetylpyridine, or 2-benzoylpyridine. They coordinated to Fe(II) ion in a 1: 2 mole ratio followed by treatment with iodide ions affording complexes with a general formula [Fe(L)2]I2·2H2O, (L = L1, L2, or L3). Spectrophotometric evaluation of the kinetics of base catalysed hydrolysis of these complex cations was carried out with an aqueous solution of NaOH in different ratios of water/methanol binary mixtures. Kinetics of the hydrolysis followed the rate law (k 2[OH−] + k 3[OH−]2)[complex]. Reactivity trends and their rate constants were compared and discussed in terms of ligand structure and solvation parameters. The methanol ratio affects the hydrolysis as a co-solvent which was analysed into initial and transition state components. The increase in the rate constant of the base hydrolysis of Fe(II) complexes, as the ratio of methanol increases, is predominantly caused by the strong effect of the organic co-solvent on the transition states.

Copper catalysed hydrolysis of acrylonitrile to acrylamide: Solvent effects

1990 ◽  
Vol 57 (1) ◽  
pp. 215-222 ◽  
Author(s):  
J.C. Lee ◽  
N.W. Cant ◽  
D.L. Trimm ◽  
M.S. Wainwright
Keyword(s):  
Solvent Effects ◽  
Hydrolysis Of

Solvent effects on the acid-catalyzed hydrolysis of tetramethylurea

1976 ◽  
Vol 5 (3) ◽  
pp. 163-169 ◽  
Author(s):  
K. R. Lindfors ◽  
Douglas X. West ◽  
Robert E. Dominic
Keyword(s):  
Solvent Effects ◽  
Acid Catalyzed ◽  
Hydrolysis Of

Solvent Effects on Particle Formation in Hydrolysis of Tetraethyl Orthosilicate

2005 ◽  
Vol 35 (3) ◽  
pp. 197-201 ◽  
Author(s):  
Eiichi Mine ◽  
Daisuke Nagao ◽  
Yoshio Kobayashi ◽  
Mikio Konno
Keyword(s):  
Solvent Effects ◽  
Particle Formation ◽  
Tetraethyl Orthosilicate ◽  
Hydrolysis Of
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