scholarly journals SYNTHETIC UTILITY OF N-CHLOROSUCCINIMIDE IN THE OXIDATION OF ISATIN IN AQUEOUS ACETONITRILE MEDIUM – A KINETIC AND MECHANISTIC STUDY

2021 ◽  
Vol 10 (12) ◽  
Keyword(s):  
Mechanistic Study ◽  
Aqueous Acetonitrile ◽  
Synthetic Utility ◽  
Acetonitrile Medium

Effect of substituents on the rate of oxidation of anilines with peroxomonosulfate monoanion (HOOSO−3) in aqueous acetonitrile: A mechanistic study

2005 ◽  
Vol 37 (11) ◽  
pp. 649-657 ◽  
Author(s):  
Subbiah Meenakshisundaram ◽  
M. Selvaraju ◽  
N. M. Made Gowda ◽  
Kanchugarakoppal S. Rangappa
Keyword(s):  
Mechanistic Study ◽  
Aqueous Acetonitrile ◽  
Effect Of Substituents

scholarly journals Kinetics and Mechanism ofmeso-Tetraphenylporphyrin Iron(III) Chloride Catalysed Oxidation of Indole-3-Acetic Acid by Peroxomonosulphate

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Durairaj Kungumathilagam ◽  
Kulanthaivel Karunakaran
Keyword(s):  
Acetic Acid ◽  
Reaction System ◽  
Kinetic Scheme ◽  
Mechanistic Study ◽  
Radical Mechanism ◽  
First Order ◽  
Catalysed Oxidation ◽  
Indole 3 Acetic Acid ◽  
Catalyst Increase ◽  
Acetonitrile Medium

Mechanistic study onmeso-tetraphenylporphyrin iron(III) chloride (TPP) catalysed oxidation of indole-3-acetic acid by peroxomonosulphate (oxone) in aqueous acetonitrile medium has been carried out. The reaction follows a first order with respect to both substrate and oxidant. The order with respect to catalyst was found to be fractional. The order of reaction with respect to catalyst varies with a concentration of catalyst. Increase in percentage of acetonitrile decreased the rate. The reaction fails to initiate polymerization, and a radical mechanism is ruled out. Activation and thermodynamic parameters have been computed. A suitable kinetic scheme based on these observations is proposed. Significant catalytic activity is observed for the reaction system in the presence of TPP.

scholarly journals A mechanistic investigation of the oxidation of N,α-diphenylnitrones by dichloramine-T in aqueous acetonitrile medium - a non-linear Hammett plot

2009 ◽  
Vol 74 (5) ◽  
pp. 493-502
Author(s):  
S. Manivarman ◽  
G. Rajarajan ◽  
G. Manikandan ◽  
M. Sekar ◽  
J. Jayabharathi ◽  
...  
Keyword(s):  
Reaction Rate ◽  
The Other ◽  
Hammett Constant ◽  
Kinetics Of Oxidation ◽  
Aqueous Acetonitrile ◽  
First Order ◽  
Mechanistic Investigation ◽  
Non Linear ◽  
Kinetics Of ◽  
Acetonitrile Medium

The kinetics of oxidation of a number of meta- and para-substituted N,?-diphenylnitrones (nitrone) by dichloramine-T (DCT) was investigated in the presence of alkali in aqueous acetonitrile medium. The order with respect to DCT was one and to OH- an inverse fractional order. The reaction was first order with respect to nitrone. Both electron releasing and withdrawing substituents suppress the reaction rate. The observed rate constant for the substituents were plotted against the Hammett constant, ?, and a non-linear concave downward curve was obtained. The electron withdrawing substituents fall on one side of the curve, having a negative ? value and the electron releasing substituents fall on the other side, with a positive ? value. A mechanism is proposed and the derived rate law is in conformity with the observed results.

scholarly journals Polyethylene Glycols as Efficient Media for Decarboxylative Nitration of α,β-Unsaturated Aromatic Carboxylic Acids by Ceric Ammonium Nitrate in Acetonitrile Medium: A Kinetic and Mechanistic Study

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
K. Ramesh ◽  
S. Shylaja ◽  
K. C. Rajanna ◽  
P. Giridhar Reddy ◽  
P. K. Saiprakash
Keyword(s):  
Ammonium Nitrate ◽  
Carboxylic Acids ◽  
Reaction Times ◽  
Ceric Ammonium Nitrate ◽  
Polyethylene Glycols ◽  
Mechanistic Study ◽  
Aromatic Carboxylic Acids ◽  
Detailed Kinetics ◽  
Kinetics Of ◽  
Acetonitrile Medium

Polyethylene glycols (PEGs) were found to be efficient media for decarboxylative nitration of α,β-unsaturated aromatic carboxylic acids by ceric ammonium nitrate (CAN) in acetonitrile to give β-nitrostyrene derivatives. Kinetics of the reaction exhibited second order kinetics with a first order dependence on [CAN] and [substrate]. Reactions were too sluggish to be studied in the absence of PEG; therefore detailed kinetics were not taken up. Reaction times were reduced from 24 hrs to few hours. The catalytic activity was found to be in the increasing order PEG-300 > PEG-400 > PEG-600 > PEG-200. Mechanism of PEG-mediated reactions was explained by Menger-Portnoy's scheme as applied in micellar kinetics.

Hydro peroxides /NaNO2/KHSO4 mediated synthesis, kinetics and mechanistic study of nitration of aromatic compounds in aqueous acetonitrile

2019 ◽  
Vol 21 ◽  
pp. 100222 ◽  
Author(s):  
Suresh Muppidi ◽  
Chinna Rajanna Kamatala ◽  
Sudhakar Chary Voruvala ◽  
Satish Kumar Mukka
Keyword(s):  
Aromatic Compounds ◽  
Mechanistic Study ◽  
Aqueous Acetonitrile
Sign in / Sign up

Export Citation Format

Share Document