Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpipe

Details Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpipe Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpipe

1990-06-18

1991-11-26

Ford, John M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21146

Patent

active

050683357

ABSTRACT:
A process for the preparation of 4-hydroxy-2,2,6,6-tetramethyliperidine (HTMP) by hydrogenation of triacetonamine (TAA) in the presence of an Ni, Co, Ru, Rh, Os or Ir hydrogenation catalyst is described. The process is carried out in the melt without a solvent.

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Herbert O. Hoise, Modern Synthetic Reactions 2nd Ed., W. A. Benjamin, Menlo Park, CA 1972, p. 9.

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