One-potN-alkylation of primary amines to secondary amines by gold clusters supported on porous coordination polymers

Kinetic modeling of one-pot myrtenol amination over Au/ZrO2 catalyst

“…The plausible reaction mechanism for alcohol amination presented in [24][25][26] involves the adsorbed aldehyde and amine interactions to form hemiaminal intermediate, which then undergoes hydrogen transfer. The hemiaminal intermediate formation was also included in the kinetic model.…”

Metal–organic framework MIL-53(Al)-supported copper catalyst for CO catalytic oxidation reaction

“…With high pore volume, large surface area and geometrical control, MOFs have more extensive applications than other porous materials, such as for adsorption separation, catalysts, optical and battery materials [6][7][8][9][10]. Catalysis based on MOFs includes cyanosilylation of benzaldehyde and acetone [11], oxidation of alkanes, olefins, alcohols, and amines [12-17], hydroxylation of aromatic compounds [18], hydrolysis of esters, esterification of acetic acid with 1-propanol [19], and regioselective ring opening of epoxides [20].…”

Cascade Reactions Catalyzed by Metal Organic Frameworks

“…Although Au/CPL-2 and Au/MOF-5 showed high conversion towards the oxidation of benzylamine to N-benzylidenebenzylamine, only trace amounts of dibenzylamine as final product was observed. [53] In contrast, Au/MIL-53(Al) exhibited the highest conversion in the oxidation step and also in the hydrogenation of N-benzylidenebenzylamine, affording dibenzylamine in 91 % yield. This clearly shows the high activity of Au/MIL-53(Al), which was attributed to the small particle size and uniform distribution of Au NPs.…”

“…Au NPs with particle size smaller than 5 nm have been incorporated on MIL-53(Al), MOF-5, and CPL-2 [Cu 2 (pzdc) 2 -(bpy)] n (pzdc=pyrazine-2.3-dicarboxylate, bpy = 2,2'-bipyridine) [53] In particular, Au NPs in MIL-53(Al) exhibited diameters below 1.6 AE 1.0 nm whereas the particle size of Au over MOF-5 and CPL-2 was significantly larger (3.3 AE 2.3 and 2.4 AE 1.0 nm, respectively). These catalysts were tested for the synthesis of dibenzylamine from benzylamine by sequential oxidation/hydrogenation via the formation of N-benzylidenebenzylamine as intermediate (Scheme 6).…”