Evonik Degussa Gmbh

Jochen Niemeyer

Manfred Neumann

Benjamin Willy

Michael Keup

Guenter Kreilkamp

Rolf Schneider

Matthias Seiler

Volker Brehme

Christoph Schwarz

Stefanie Rinker

Jörn Rolker

Felix Nissen

Daniel Witthaut

Daniel Dembkowski

Alexander Schraven

Mirko Michel

Sabine Schering

Beatrix Vom Bruch

Jorn Rolker

An N-substituted triacetonediamine compound is prepared by reacting 4-amino-2,2,6,6-tetramethylpiperidine or a derivative thereof with a carbonyl compound in a reductive amination, wherein reductive conditions are established by conducting the reaction in the presence of hydrogen and in the presence of a supported catalyst, wherein the supported catalyst includes at least one metal M, wherein the metal M is selected from the group consisting of V, Cr, Mo, Mn, Ni, Pd, Pt, Fe, Ru, Os, Co, Rh, Ir, and Cu.

Synthesis of triacetonediamine compounds by reductive amination proceeding from triacetonediamine and derivatives thereof

In a method of absorbing COfrom a gas mixture the use of an absorption medium comprising water and at least one amine of formula (I) 

[object Object]

An N-methyl-substituted triacetonamine compound is prepared by reacting at least one triacetonamine compound (I) with formaldehyde under reductive conditions, in the presence of hydrogen and in the presence of a supported catalyst, wherein the supported catalyst contains at least one metal M, wherein the metal M is selected from the group consisting of V, Cr, Mo, Mn, Ni, Pd, Pt, Fe, Ru, Os, Co, Rh, Ir, and Cu.

Process for preparing an N-methyl-substituted triacetonamine compound

Growing community of inventors

Essen, Germany

Jochen Niemeyer