IJIFR VOLUME 3 ISSUE 12 AUGUST 2016

ISSN: 2347-1697
International Journal of Informative & Futuristic Research (IJIFR)
Volume - 3, Issue -12, August 2016
Continuous 36 th Edition, Page No: 4578-4589
Figure 4: Plots of Log K 2 against Log [H + ] for the oxidation of 2, 6 diphenyl piperidine-4-one
with Mn(VII)
It appears that the active species is per manganic acid as per the equilibrium leading to unit
dependence on acidity.
H + + MnO - ⇌ HMnO 4
V. Effect of varying temperature on reaction rate
The oxidation rate of both 2-6 diphenyl piperedine-4-one and 3 methyl 2,6 diphenyl
piperedine-4-one have been observed at various temperature i.e 25,35,45 and 55℃with
increasing .The rate of reaction even found to increase temperature for all the substrate
concentration at all acidities.
Table-5a: Values of activation parameters for the oxidation of 2, 6 diphenyl piperidine-4-one
[H 2 SO 4 ] M ∆E a
kJ mole -1
∆H*
kJ mole -1
∆S*
JK -1 mole -1
∆G*
kJ mole -1
0.3 46.65±2.17 44.05±2.17 −95.76±7.26 83.22±4.33
0.4 74.57±1.58 72.00±1.55 −97.40±4.29 83.80±3.14
0.5 91.54±1.58 88.95±1.57 −34.40±5.47 80.80±3.14
Table-5b: Values of activation parameters for the oxidation of 3-methyl-2,6 diphenyl
piperidine-4-one
[H 2 SO 4 ] M ∆E a ∆H* ∆S* ∆G*
kJ mole -1 kJ mole -1 JK -1 mole -1 kJ mole -1
0.3 56.34±2.32 53.75±2.22 −131.08±7.03 84.44±4.44
0.4 56.38±1.32 53.84±1.32 −36.40±5.10 81.18±2.64
0.5 70.22±2.33 67.60±2.33 30.47±4.05 81.10±4.66
Bhoopesh Kumar Sharma, Dr. Soni Rani, Devesh Singh:: Kinetics
And Mechanism Of Oxidation Of 2, 6 Diphenyl-Piperidine-4-One
And 3-Methyl 2, 6 Diphenyl-Piperidine-4-One By Manganese (VII)
Ion
4585