KINETICS OF OXIDATION OF SOME SUBSTITUTED N,ALPHA-DIPHENYLNITRONES BYCHLORAMINE-B IN THE PRESENCE OF ACID-MEDIUM

Authors
UMA M GOPALAKRISHNAN M JAYABHARATHI J THANIKACHALAM V
Citation
M. Uma et al., KINETICS OF OXIDATION OF SOME SUBSTITUTED N,ALPHA-DIPHENYLNITRONES BYCHLORAMINE-B IN THE PRESENCE OF ACID-MEDIUM, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 34(7), 1995, pp. 612-616
Citations number
39
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry → ACNP
ISSN journal
03764699
Volume
34
Issue
7
Year of publication
1995
Pages
612 - 616
Database
ISI
SICI code
0376-4699(1995)34:7<612:KOOOSS>2.0.ZU;2-1
Abstract
Kinetics of oxidation of some substituted aldonitrones by chloramine-B (sodium N-chlorobenzene sulphonamide) in the presence of perchloric a cid, resulting in the formation of corresponding benzaldehyde and nitr osobenzene has been studied. The reaction is first order in [CAB](0), [nitrone](0) and fractional order in [HClO4](0). Addition of benzenesu lphonamide [BSA] retards the oxidation. Variation in ionic strength, d ielectric constant of the medium and addition of [Cl-] ion does not al ter the reaction rate. The solvent isotope effect has been studied by using heavy-water. The reaction has been studied at different temperat ures and a mechanism confirming to the kinetic observations is suggest ed.