Sustainable heterogeneous platinum catalyst for direct methylation of secondary amines by carbon dioxide and hydrogen.
Pt and MoO(x) co-loaded TiO2 is found to be highly effective for direct methylation of aliphatic and aromatic secondary amines by CO2 and H2 under solvent-free conditions. This is the first additive-free and reusable heterogeneous catalytic system with acceptable turnover number.
Catalysis Research Center, Hokkaido University, N-21, W-10, Sapporo 001-0021 (Japan), Fax: (+81) 11-706-9163.
Kenichi
K
Kon
S M A Hakim
SM
Siddiki
Wataru
W
Onodera
Ken-ichi
K
Shimizu
carbon dioxide; heterogeneous catalysis; hydrogenation; methylation; platinum