Wydział Chemii

Tomasz Bereta

Włodzimierz Tylus

Anna M. Trzeciak

2022

Polyhedron

225

116075/1-116075/7

10.1016/j.poly.2022.116075

Naukowa

Angielski

Artykuł

Two new palladium complexes with chelating phosphorus-free ferrocenyl-imine ligands derived from 1,2-diaminocyclohexane and 1,2-diphenylethylenediamine were investigated in the hydrogenation of aromatic ketones. It was found that these catalysts are active in reactions performed with H₂ as well as in transfer hydrogenation using 2-propanol/NaOH as a hydrogen donor. In the hydrogenation of acetophenone (APh), two products could be formed, 1-phenylethanol (PhE) and ethylbenzene (EtB), and the reaction selectivity in the studied system was controlled by the kind of solvent and the amount of free ligand excess. In the hydrogenation of acetophenone derivatives, higher selectivity to 1-arylethanol was achieved under hydrogen transfer conditions than under 10 bars of H₂ and some ketones were hydrogenated only using this method.

Ferrocenyl-imine, Palladium, Hydrogenation, Aromatic ketone, Selectivity

CC-BY-NC-ND

http://dx.doi.org/10.1016/j.poly.2022.116075

http://www.elsevier.com