MN(VII) OXIDATION USING CETYLTRIMETHYLAMMONIUM PERMANGANATE - OXIDATION OF ALKYL CINNAMATES

Authors
DASH S MISHRA BK
Citation
S. Dash et Bk. Mishra, MN(VII) OXIDATION USING CETYLTRIMETHYLAMMONIUM PERMANGANATE - OXIDATION OF ALKYL CINNAMATES, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 36(8), 1997, pp. 662-666
Citations number
21
Categorie Soggetti
Chemistry
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical → ACNP
ISSN journal
03764710
Volume
36
Issue
8
Year of publication
1997
Pages
662 - 666
Database
ISI
SICI code
0376-4710(1997)36:8<662:MOUCP->2.0.ZU;2-G
Abstract
The kinetics and mechanism of Mn(VII) oxidation of substituted alkyl ( E) cinnamates by cetyltrimethylammonium permanganate have been studied spectrophotometrically at 524 nm in chloroform medium. From the forma tion of aldehydes and Mn(III) a mechanism for the oxidation reaction h as been proposed. The formation of cyclic manganate(V) diester interme diate is supported by a large negative entropy of activation. A negati vely charged transition state is also supported by the Hammett plot.