Direct Iodination of Aromatic Compounds with Polyvinylpyrrolidone Supported Hydrogen Peroxide (PVP-H2O2) and Potassium Iodide or Molecular Iodine

2006 ◽  
Vol 24 (8) ◽  
pp. 1077-1079 ◽  
Author(s):  
Ali Reza Pourali ◽  
Mersieh Ghanei
Keyword(s):  
Hydrogen Peroxide ◽  
Potassium Iodide ◽  
Aromatic Compounds ◽  
Molecular Iodine

Iodination of Aromatic Compounds Using Potassium Iodide and Hydrogen Peroxide

2008 ◽  
Vol 38 (22) ◽  
pp. 3894-3902 ◽  
Author(s):  
K. Suresh Kumar Reddy ◽  
N. Narender ◽  
C. N. Rohitha ◽  
S. J. Kulkarni
Keyword(s):  
Hydrogen Peroxide ◽  
Potassium Iodide ◽  
Aromatic Compounds

ChemInform Abstract: Iodination of Aromatic Compounds Using Potassium Iodide and Hydrogen Peroxide.

ChemInform ◽  
2009 ◽  
Vol 40 (17) ◽  
Author(s):  
K. Suresh Kumar Reddy ◽  
N. Narender ◽  
C. N. Rohitha ◽  
S. J. Kulkarni
Keyword(s):  
Hydrogen Peroxide ◽  
Potassium Iodide ◽  
Aromatic Compounds

The reduction of I2 by H2O2 in aqueous solution

2001 ◽  
Vol 79 (3) ◽  
pp. 304-311 ◽  
Author(s):  
J M Ball ◽  
J B Hnatiw
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Peroxide ◽  
Nuclear Reactor ◽  
Ph Dependence ◽  
Radiolysis Product ◽  
Molecular Iodine ◽  
Water Radiolysis ◽  
Reactor Accident ◽  
Rate Law ◽  
Accident Conditions

The reduction of I2 by hydrogen peroxide, a primary water radiolysis product, has been identified as a key reaction that would influence iodine volatility in nuclear reactor accident conditions (1–3). Although there have been a number of studies of the reduction of I2, there exists a great degree of controversy regarding the intermediates involved, the effect of buffers, and the general rate law (1–9). Because the rates and the mechanism of this reaction are important in predicting the pH dependence of iodine behaviour in reactor containment building after a postulated reactor accident, we have undertaken a kinetic study of I2 reduction by H2O2 in aqueous solution over a pH range of 6–9. The experiments were performed using stopped-flow instrumentation and monitoring the decay of I–3 spectrophotometrically. The effects of buffer catalysis have been examined by comparison of kinetic data obtained in sodium barbital (5,5-diethylbarbituric acid), disodium citrate, and disodium hydrogen phosphate buffers. The effect of buffers, combined with the complex acid dependence of the rate law, explains many of the discrepancies reported in earlier literature.Key words: hydrogen peroxide, molecular iodine, kinetics, iodine volatility.

I2-Catalyzed Oxidative Coupling of Ketone Oximes and Dialkyl/Diarylphosphine Oxides

Synlett ◽  
2020 ◽  
Vol 32 (01) ◽  
pp. 75-80
Author(s):  
Qingle Zeng ◽  
Nutao Li ◽  
Yiding Wang ◽  
Hongqin Yang ◽  
Ze He
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Coupling ◽  
Molecular Iodine ◽  
Oxidizing Agent ◽  
Atom Economy ◽  
High Yields

AbstractA new protocol for the oxidative coupling of ketone oximes with dialkyl/diarylphosphine oxides to synthesize O-(dialkylphosphinyl)ketone oximes has been developed. Hydrogen peroxide is used as a green oxidizing agent, and molecular iodine is used as a nonmetal catalyst. The reaction has a high atom economy, with water as the only byproduct. O-(Dialkylphosphinyl)ketone oximes with 26 examples have been obtained with high yields. Furthermore, the product may be transformed into other molecules, i.e., by reduction.

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