MECHANISTIC INVESTIGATION OF OXIDATION OF A DIKETONE BY BROMAMINE-B IN ACID-MEDIUM

被引：0
作者：
IYENGAR, TA
MAHADEVAPPA, DS
PUTTASWAMY
机构：
[1] UNIV MYSORE,DEPT CHEM,MYSORE 570006,KARNATAKA,INDIA
[2] BANGALORE INST TECHNOL,DEPT CHEM,BANGALORE 560004,INDIA
来源：
PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-CHEMICAL SCIENCES | 1992年 / 104卷 / 05期
关键词：
BROMAMINE-B; ACETYLACETONE; HCL MEDIUM; OXIDATION KINETICS;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Oxidation of acetylacetone (AA) by bromamine-B (BAB) in HCl medium (0.1 to 0.6 mol dm-3) at constant ionic strength has been investigated at 40-degrees-C. The mtc is first order in [BAB]0 and fractional order each in [AA]0 and [H+]. The reaction is also catalysed by chloride ion. Michaelis-Menten type of kinetics is observed. Decrease in dielectric constant of medium increases the rate. A solvent isotope effect k'H2O/k'D2O = 0.96 has been noted. Activation parameters for the rate limiting step have been computed. The mechanism involves the enol form of the diketone.
引用
收藏
页码：611 / 618
页数：8
相关论文
共 34 条
  • [31] Ru(III)-catalysed oxidation of some amines by chloramine-T in hydrochloric acid medium: Mechanistic aspects and kinetic modeling
    Shivananda, K. N.
    Jagadeesh, R. V.
    Puttaswamy
    Mahendra, K. N.
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 255 (1-2) : 159 - 170
  • [32] Ru(III)-catalysed oxidation of some N-heterocycles by chloramine-T in hydrochloric acid medium:: a kinetic and mechanistic study
    Puttaswamy
    Jagadeesh, RV
    Vaz, N
    Radhakrishna, A
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 229 (1-2) : 211 - 220
  • [33] Mechanistic studies on the Ru(III)-catalyzed oxidation of some aromatic primary diamines by chloramine-T in hydrochloric acid medium: A kinetic approach
    Shivananda, K. N.
    Lakshmi, B.
    Jagadeesh, R. V.
    Puttaswamy
    Mahendra, K. N.
    APPLIED CATALYSIS A-GENERAL, 2007, 326 (02) : 202 - 212
  • [34] Mechanistic aspects for the oxidation of sunset yellow dye by chloramine-T in presence of perchloric acid and in sodium hydroxide medium catalyzed by Os(VIII): A spectrophotometric kinetic approach
    Vinod, K. N.
    Puttaswamy
    Gowda, K. N. Ninge
    INORGANICA CHIMICA ACTA, 2009, 362 (06) : 2044 - 2051
1234