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IJIFR VOLUME 3 ISSUE 12 AUGUST 2016

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ISSN: 2347-1697<br />

International Journal of Informative & Futuristic Research (<strong>IJIFR</strong>)<br />

Volume - 3, Issue -<strong>12</strong>, August <strong>2016</strong><br />

Continuous 36 th Edition, Page No: 4578-4589<br />

The more likely route for permanganate oxidation of piperidone will be scheme-II.<br />

Scheme-II<br />

Formation of permanganate cycle complex and cleaning of complex will require more<br />

energy compared to the promotion of the alcohol. The dehydration is facilitated by the<br />

stabilization of positive charge possible through a non-classical carbonium ion of the type.<br />

7. COMPARISON OF THE OXIDATION RATE OF 2, 6- DIPHENYL<br />

PIPERIDINE-4-ONE AND 3-METHYL-2, 6- DIPHENYL PIPERIDINE-4-ONE<br />

A comparison of the oxidation state of 2, 6- diphenyl piperidine with or without 3-alkyl<br />

substituent during the cause of oxidation with Mn(VII) reveals that the rate of oxidation of<br />

the former is higher than that of the 3-alkyl substituent (Table 6).<br />

Table-6: Rate constants for the oxidation of 2, 6- diphenyl piperidine-4-one and 3-methyl-2, 6-<br />

diphenyl piperidine-4-one by Mn(VII), Mn(IV) and Mn(III)<br />

[piperidone] H 2 SO 4 Oxidant<br />

Mn(III) Mn(IV) Mn(VII)<br />

2,6- diphenyl piperidine-4-one 0.3<br />

0.4<br />

0.5<br />

3-methyl-2,6- diphenyl piperidine-4-one 0.3<br />

0.4<br />

0.5<br />

32.5<br />

50.0<br />

61.3<br />

19.0<br />

32.0<br />

41.0<br />

49.5<br />

57.5<br />

71.0<br />

32.0<br />

39.0<br />

60.0<br />

16.0<br />

25.5<br />

56.5<br />

14.0<br />

29.0<br />

51.0<br />

Bhoopesh Kumar Sharma, Dr. Soni Rani, Devesh Singh:: Kinetics<br />

And Mechanism Of Oxidation Of 2, 6 Diphenyl-Piperidine-4-One<br />

And 3-Methyl 2, 6 Diphenyl-Piperidine-4-One By Manganese (VII)<br />

Ion<br />

4588

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