KINETICS AND MECHANISM OF THE OXIDATION OF ALCOHOLS BY PYRIDINIUM FLUOROCHROMATE

被引:27
作者
BHATTACHARJEE, MN [1 ]
CHAUDHURI, MK [1 ]
DASGUPTA, HS [1 ]
机构
[1] NE HILL UNIV,DEPT CHEM,SHILLONG 793003,MEGHALAYA,INDIA
关键词
ACIDS; -; ETHANOL;
D O I
10.1246/bcsj.57.258
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Pyridinium fluorochromate, C//5H//5NHCrO//3F, oxidizes benzyl alcohol, ethanol, and cyclohexanol to benzaldehyde, acetaldehyde, and cyclohexanone, respectively. While each of the oxidation, studied in acetonitrile-nitrobenzene (1:1, v/v) medium, is first order with respect to the oxidant, the rate is almost independent of the substrate concentration. The reactions are catalyzed by acid, the acid-catalyzed reactions being very fast, precluded determination of their order in acid medium. The effects of temperatures and solvent compositions were studied and activation parameters evaluated. Probable mechanisms are discussed.
引用
收藏
页码:258 / 260
页数:3
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