DUBLIN | CORE | METADATA ITEM | METADATA FOR THIS DOCUMENT |
1 | Title | Title of Document | Kinetics and Mechanism of ZnCl2 Catalyzed Oxidation of Organic Sulfides by Permanganate in Non-Aqueous Medium |
2 | Creator | Author's name, affiliation, country | K. P. SRIVASTAVA* and SANJAY KUMAR RAI P.G. Department of Chemistry, Ganga Singh College, Jai Prakash University,
Chapra-841 301, Bihar, India |
3 | Subject | Dicipline(s) | Chemical Science |
3 | Subject | Keywords | Thioanisoles, Permanganate, Acid catalysedoxidation, LUMO, HOMO |
4 | Description | Abstract | The rates of zinc chloride (Lewis acid) catalysed oxidation of thioanisole and several para-substituted thioanisoles by permanganate have been studied in anhydrous acetone solutions. The kinetic rate law obtained indicates that a complex between permanganate and the Lewis acid (ZnCl2) is formed before oxidation of the sulfur-containing compounds occurs. The function of the zinc chloride is to enhance the reactivity of permanganate. A Hammett ρ value of -1.09 ±0.05 is obtained for the oxidation of sulfides at 23.0 oC. A negative ? value means that the sulfur is electron deficient in the transition state. Values for the HOMO energies of sulfides and the LUMO energies for permanganate ion and the permanganate-zinc chloride complex have been calculated. The results indicate that electron donating substituents on the ring increase the rate of the reaction and electron withdrawing groups slow down the reaction. |
5 | Publishers | Organizing agency, location | WWW Publications, India |
6 | Contributor | Sponsor(s) | - |
7 | Date | Date (YYYY-MM-DD) | - |
8 | Type | Status & genre | Peer-reviewed Article |
8 | Type | Type | |
9 | Formate | File Formate | PDF |
10 | Identifier | Uniform Resource Identifier | Click Here |
10 | Identifier | Digital Object Identifier | |
11 | Source | Journal/conference title; vol., no. (Year) | Chemical Science Transactions, Volume 3 , Number (3), (2014) |
12 | Lanuguage | English=en | en |
13 | Relation | Supp.files | |
14 | Coverage | | - |
15 | Copyright | Copyright and permissions | |