Kinetics of the synthesis of benzyl ethers using tertiary amines as catalysts

1992 ◽  
Vol 31 (1) ◽  
pp. 177-182 ◽  
Author(s):  
Dyi Hwa Hwu ◽  
Chyi Hwang ◽  
Yen Ping Shih ◽  
Mou Yung Yeh ◽  
Chan Lung Chao
Keyword(s):  
Tertiary Amines ◽  
Benzyl Ethers ◽  
Kinetics Of

Kinetics of the Nitric Acid Oxidation of Benzyl Ethers to Benzaldehydes

1966 ◽  
Vol 88 (24) ◽  
pp. 5832-5837 ◽  
Author(s):  
Yoshiro Ogata ◽  
Yasuhiko Sawaki
Keyword(s):  
Nitric Acid ◽  
Acid Oxidation ◽  
Benzyl Ethers ◽  
Nitric Acid Oxidation ◽  
Kinetics Of

Molar paramagnetic solvent NMR shifts of galvinoxyl in toluene. Kinetics of the reaction between galvinoxyl and tertiary amines at high radical concentrations

1990 ◽  
Vol 28 (10) ◽  
pp. 878-882 ◽  
Author(s):  
Constantinos G. Screttas ◽  
Georgios A. Heropoulos
Keyword(s):  
Tertiary Amines ◽  
Kinetics Of

The reaction kinetics of urethane formation in the presence of metal compounds and tertiary amines

1973 ◽  
Vol 15 (1) ◽  
pp. 104-109 ◽  
Author(s):  
L.A. Bakalo ◽  
A.L. Sirotinskaya ◽  
T.E. Lipatova ◽  
A.A. Blagonravova ◽  
I.A. Pronina
Keyword(s):  
Reaction Kinetics ◽  
Tertiary Amines ◽  
Metal Compounds ◽  
Urethane Formation ◽  
Kinetics Of

Cyclization kinetics and mechanism of N-benzoyl-N'-(1,2-dimethyl-3-oxo-1-butenyl)thiourea

1983 ◽  
Vol 48 (2) ◽  
pp. 578-585 ◽  
Author(s):  
Jaromír Kaválek ◽  
Tomáš Potěšil ◽  
Vojeslav Štěrba
Keyword(s):  
Hydrochloric Acid ◽  
Secondary Amines ◽  
Tertiary Amines ◽  
Cyclization Product ◽  
Ph Values ◽  
Hydroxyl Ion ◽  
Primary And Secondary Amines ◽  
Acids And Bases ◽  
Cyclization Kinetics ◽  
Kinetics Of

Cyclization kinetics of N-benzoyl-N'-(1,2-dimethyl-3-oxo-1-butenyl)thiourea have been studied in aqueous and methanolic solutions of acids and bases. In all cases the cyclization product is 4,5,6-trimethyl-2,5-dihydro-2-thioxopyrimidine or its protonated or deprotonated forms. In dilute methanolic and aqueous hydrochloric acid the substrate reacts in its monoprotonated form. The cyclization in basic media is catalyzed by methoxide or hydroxyl ion and also by primary and secondary amines at such pH values where the catalysis by lyate ion is practically insignificant. Tertiary amines and acetate ion do not catalyze the cyclization.

scholarly journals The Effect of Aromatic Tertiary Amines on the Copper(II) Catalyzed Decarboxylation of 3-Oxo-Glutaric Acid

1972 ◽  
Vol 50 (10) ◽  
pp. 1461-1467
Author(s):  
K. N. Leong ◽  
M. W. Lister
Keyword(s):  
Copper Complexes ◽  
Glutaric Acid ◽  
Catalytic Effect ◽  
Copper Ions ◽  
Equilibrium Constants ◽  
Copper Ion ◽  
Tertiary Amines ◽  
Selective Electrode ◽  
Equilibrium Concentrations ◽  
Kinetics Of

The kinetics of the copper(II) catalyzed decarboxylation of 3-oxo-glutaric acid have been investigated in unbuffered solutions at 25 °C and 0.60 M ionic strength, both in the presence of aromatic tertiary amines, and with hydrated copper ions alone. The amines used were 2,2′-bipyridyl and 1,10-phenanthroline. Equilibrium constants for the formation of the various copper complexes were determined with a copper ion selective electrode, particularly for the species CuAB, where A is the 3-oxo-glutarate ion, and B is an aromatic amine. The kinetic behavior was then interpreted as arising from the simultaneous decarboxylation of all the species present containing a 3-oxo-glutarate ligand. The resulting rate constants indicated that some kinetic effect was transmitted through the copper from the base to the 3-oxo-glutarate, but the effect was relatively small, and the bulk of the catalytic effect caused by the base arose from changes in equilibrium concentrations.

Oxidation of aromatic secondary and tertiary amines by peroxydisulphate. A kinetic study

1971 ◽  
Vol 24 (8) ◽  
pp. 1633 ◽  
Author(s):  
A Sabesan ◽  
N Venkatasubramanian
Keyword(s):  
Transition State ◽  
Kinetic Study ◽  
Tertiary Amines ◽  
Steric Strain ◽  
First Order ◽  
Kinetics Of

The kinetics of the oxidation of aromatic secondary and tertiary amines by peroxydisulphate ion under aqueous basic conditions have been investigated. The reaction is first order in amine and first order in S2O82- ion. The order of the reactivity is found to be: N-methylaniline > N,N-dimethylaniline > aniline and N-ethylaniline > N,N-diethylaniline > aniline, and among each class: N-methylaniline > N-ethylaniline and N,N-dimethylaniline > N,N-diethylaniline. This reactivity is explained on the basis of a steric strain in the transition state super- imposed over the usual polar effects.

Studies of N-halogeno-compounds. Part VI. The kinetics of chlorination of tertiary amines

1954 ◽  
pp. 1750 ◽  
Author(s):  
A. J. Ellis ◽  
F. G. Soper
Keyword(s):  
Tertiary Amines ◽  
Kinetics Of
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