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Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.49A [2010] >
IJC-A Vol.49A(11) [November 2010] >
| Title: | Oxidation kinetics of arylthioureas by cetyltrimethylammonium dichromate |
| Authors: | Sahoo, Prangya Rani
Sahu, Sandhyamayee
Patel, Sabita
Mishra, B K |
| Keywords: | Kinetics
Reaction mechanisms
Oxidations
Thioureas
Arylthioureas
Solvent effects |
| Issue Date: | Nov-2010 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | Int. Cl.9 C07B33/00 |
| Abstract: | Arylthioureas, which are toxic, on oxidation by cetyltrimethylammonium
dichromate in acetic acid undergo desulphurization to the corresponding
non-toxic arylureas. The mechanism of the oxidation reaction has been studied
spectrophotometrically. The rate of reaction is found to be dependent on
[CTADC], [phenylthiourea], [acid], [surfactant], polarity of the solvents and
reaction temperature. The reaction is fractional order with respect to
[substrate] and is catalyzed by acid. With increase in [CTADC], the rate
constant decreases. The structure of the substituents has no significant effect
on the rate constant. On the basis of various observations, a mechanism has
been proposed for the oxidation reaction. |
| Page(s): | 1483-1487 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.49A(11) [November 2010]
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