Kinetics and Mechanism of the Oxidation of DL-Methionine by Tetrakis(Pyridine)silver Dichromate

被引：1
|
作者：
Patel, M. [1 ]
Mathur, L. [1 ]
Jha, K. [2 ]
Kothari, A. [1 ]
Shastri, I. [2 ]
Sharma, Pradeep K. [1 ]
机构：
[1] Jai Narain Vyas Univ, Dept Chem, Jodhpur 342005, Rajasthan, India
[2] RD Natl Coll, Dept Chem, Bombay 400050, Maharashtra, India
来源：
ASIAN JOURNAL OF CHEMISTRY | 2013年 / 25卷 / 05期
关键词：
Dichromate; Kinetics; Mechanism; Methionine; Oxidation; TETRAETHYLAMMONIUM CHLOROCHROMATE; PYRIDINIUM BROMOCHROMATE; REACTIVITY; ALPHA;
D O I：
10.14233/ajchem.2013.13887
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The oxidation of methionine by tetrakis(pyridine)silver dichromate in dimethyl sulphoxide leads to the formation of corresponding sulphoxide. The reaction is of first order with respect to tetrakis(pyridine)silver dichromate. Michaelis-Menten type kinetics was observed, with respect to methionine. The reaction is catalyzed by hydrogen ions. The hydrogen-ion dependence has the form: k(obs) = a,+ b [H+]. The oxidation of methionine was studied in 19 different organic solvents. The Solvent effect was analyzed by Kamlet's and Swain's multiparametric, equations. Solvent,effect indicated the importance of the cation-solvating power of the solvent A. suitable mechanism has also been postulated.
引用
收藏
页码：2779 / 2782
页数：4
相关论文
共 50 条
  • [21] Oxidation of some aliphatic aldehydes by tetrakis (pyridine) silver dichromate: A kinetic and mechanistic study
    Patel, M.
    Poonam
    Jha, K.
    Baghmar, M.
    Kothari, A.
    Shastri, I.
    Sharma, Pradeep K.
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2012, 89 (08) : 1149 - 1154
  • [22] Oxidation of some unsaturated acids by tetrakis (pyridine) silver dichromate : A kinetic and mechanistic study
    Choudhary, A.
    Yajurvedi, D.
    Kumbhani, S.
    Shastri, I.
    Sharma, Vinita
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2009, 86 (08) : 832 - 836
  • [23] Kinetics and mechanism of the ninhydrin reaction with DL-methionine in the absence and the presence of organic solvents
    Kabir-ud-Din
    Bano, M
    Khan, IA
    INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY, 2003, 42 (05): : 1132 - 1136
  • [24] Kinetics and mechanism of oxidation of DL-methionine by Keggin-type 12-tungstocobaltate(III) in aqueous acetic acid medium
    Satpathy, P. K.
    Dash, G. C.
    Acharya, S.
    Mohanty, P.
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2006, 83 (09) : 891 - 894
  • [25] KINETICS AND MECHANISM OF ANATION OF HYDROXOPENTAAQUOCHROMIUM(III) ION BY DL-METHIONINE IN WATER-ETHANOL MEDIUM
    MUSTOFY, HGM
    DE, GS
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 1986, 63 (12) : 1040 - 1044
  • [26] PHOTOSENSITIZED OXIDATION OF DL-METHIONINE, L-METHIONINE AND D-METHIONINE BY SINGLET OXYGEN
    GANDHI, P
    DUBEY, R
    AMETA, SC
    SHARMA, TC
    NATIONAL ACADEMY SCIENCE LETTERS-INDIA, 1984, 7 (11): : 331 - 333
  • [27] The kinetics and mechanism of the oxidation of seleno-DL-methionine by potassium ferrate
    Read, JF
    Wyand, AEH
    TRANSITION METAL CHEMISTRY, 1998, 23 (06) : 755 - 762
  • [28] The kinetics and mechanism of the oxidation of seleno-DL- methionine by potassium ferrate
    John F. Read
    Anna E. H. Wyand
    Transition Metal Chemistry, 1998, 23 : 755 - 762
  • [29] Solvent effects on the kinetics of oxidation of methionine by nicotinium dichromate
    Malarvili, D.
    Pandeeswaran, M.
    Bhuvaneshwari, D. S.
    Elango, K. P.
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2006, 83 (09) : 895 - 898
  • [30] Oxidation of some vicinal and non-vicinal diols by tetrakis(pyridine)silver dichromate: A kinetic and mechanistic study
    Meena, A. K.
    Daiya, A.
    Sharma, A.
    Banerji, J.
    Kotai, L.
    Sharma, Vinita
    JOURNAL OF THE INDIAN CHEMICAL SOCIETY, 2011, 88 (12) : 1887 - 1893
12345