- NEW METHOD FOR THE SYNTHESIS OF UNSYMMETRICAL TERTIARY AMINES
-
Disclosed is a new method for the synthesis of unsymmetrical tertiary amines using alcohol and an imine, and to new tertiary amines.
- -
-
Paragraph 0087
(2020/08/25)
-
- A process for preparing amine compound using carbon-supported cobalt-rhodium nanoparticel catalyzed hydrogen-free recuctive amination
-
The present invention relates to hydrogen-free reductive amination of an aldehyde and/or ketone and an amine and/or nitroarene using cobalt-rhodium heterometal nanoparticles supported on carbon as a non-homogeneous catalyst. According to the present invention, it is possible to carry out amination under significantly lower pressure as compared to the reductive amination carried out in the presence of a conventional rhodium or ruthenium catalyst. In addition, there is no need for using an additional ligand, acid or base. Further, it is possible to use water generated in a reaction system by a water-gas shift reaction as a hydrogen source with no use of an external hydrogen source, and thus to use a solvent without purification. Thus, it is possible to simplify the reaction procedure. The catalyst system according to the present invention provides a simple method for preparing secondary and tertiary amines from various aldehydes and amines.
- -
-
Paragraph 0066;0074
(2017/04/25)
-
- CATALYST COMPOUNDS
-
The present invention relates to an iridium-based catalyst compound for hydrogenating reducible moieties, especially imines and iminiums, the catalyst compounds being defined by the formulas: where ring B is either itself polycyclic, or ring B together with R is polycyclic. The catalysts of the invention are particularly effective in reductive amination procedures 10 which involve the in situ generation of the imine or iminium under reductive hydrogenative conditions.
- -
-
Paragraph 0314; 0327
(2015/03/28)
-
- CATALYST COMPOUNDS
-
The present invention relates to an iridium-based catalyst compound for hydrogenating reducible moieties, especially imines and iminiums, the catalyst compounds being defined by the formulas: where ring B is either itself polycyclic, or ring B together with R is polycyclic. The catalysts of the invention are particularly effective in reductive amination procedures 10 which involve the in situ generation of the imine or iminium under reductive hydrogenative conditions.
- -
-
Paragraph 00163; 00176
(2013/11/05)
-
