Trinuclear Pd3O2 intermediate in aerobic oxidation catalysis.
Angew Chem Int Ed Engl
; 53(22): 5648-52, 2014 May 26.
Article
in En
| MEDLINE
| ID: mdl-24711099
ABSTRACT
The activation of O2 is a key step in selective catalytic aerobic oxidation reactions mediated by transition metals. The bridging trinuclear palladium species, [(LPd(II))3(µ(3)-O)2](2+) (L=2,9-dimethylphenanthroline), was identified during the [LPd(OAc)]2(OTf)2-catalyzed aerobic oxidation of 1,2-propanediol. Independent synthesis, structural characterization, and catalytic studies of the trinuclear compound show that it is a product of oxygen activation by reduced palladium species and is a competent intermediate in the catalytic aerobic oxidation of alcohols. The formation and catalytic activity of the trinuclear Pd3O2 species illuminates a multinuclear pathway for aerobic oxidation reactions catalyzed by Pd complexes.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Palladium
Language:
En
Year:
2014
Type:
Article