Process to preparing 2,2,6,6-tetra-methylpiperidine-n-oxyl and i

Details Process to preparing 2,2,6,6-tetra-methylpiperidine-n-oxyl and i Process to preparing 2,2,6,6-tetra-methylpiperidine-n-oxyl and i

1993-06-09

1995-05-16

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546242, C07C21138

Patent

active

054162157

ABSTRACT:
A process is described for preparing 2,2,6,6-tetramethylpiperidine-N-oxyl and its 4-position substituted derivatives by oxidation of 2,2,6,6-tetramethylpiperidine and its 4-position substituted derivatives in the presence of hydrogen peroxide and low concentrations of divalent metal salts.

REFERENCES:
Synthesis, Nov. 11, 1987, pp. 1015-1017, P. Brougham, et al., "Oxidation Reactions Using Magnesium Monoperphthalate . . . "
Soviet Patents Abstracts, Jul. 31, 1991, Derwent Publications Ltd., AN-91-176790, SU-A-1 583 415, Aug. 7, 1990.

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