公开(公告)号：US20220297096A1

公开(公告)日：2022-09-22

申请号：US17702043

申请日：2022-03-23

申请人： Hoffmann-La Roche Inc.

发明人： Stephan BACHMANN ,  Matthias BELLER ,  Dario FORMENTI ,  Kathrin JUNGE ,  Basudev SAHOO ,  Michelangelo SCALONE ,  Christoph TOFP

IPC分类号： B01J23/755 ,  B01J21/18 ,  B01J23/34 ,  B01J23/52 ,  B01J23/72 ,  B01J23/745 ,  B01J23/75 ,  B01J35/02 ,  B01J37/04 ,  B01J37/08 ,  C07B35/06

摘要： The present invention relates to a novel process for the preparation of a nitrogen containing biopolymer-based catalyst and to the novel nitrogen containing biopolymer-based catalysts obtainable by this process. In particular, the invention relates to a novel nitrogen containing biopolymer-based catalyst comprising metal particles and at least one nitrogen containing carbon layer. The invention also relates to the use of a nitrogen containing biopolymer-based catalyst in a hydrogenation process, preferably in a process for hydrogenation of nitroarenes, nitriles or imines; in a reductive dehalogenation process of C—X bonds, wherein X is Cl, Br or I, preferably in a process for dehalogenation of organohalides or in a process for deuterium labelling of arenes via dehalogenation of organohalides; or in an oxidation process. Further, the invention relates to a metal complex with the nitrogen containing biopolymer, wherein the metal is a transition metal selected from the group consisting of manganese, ruthenium, cobalt, rhodium, nickel, palladium and platinum, and wherein the nitrogen containing biopolymer is selected from chitosan, chitin and a polyamino acid.