Transfer hydrogenation of acetophenone catalyzed by ruthenium-arene complexes with ß-diketonate and ß-ketoiminate ligands

CHED 265

Liza S. Valdivia, valdiv15@newpaltz.edu, Tara A. Passik, Lisa M. Stafford, and Daniel A. Freedman, freedmad@newpaltz.edu. Chemistry Department, SUNY New Paltz, 75 S. Manheim Blvd., New Paltz, NY 12561
We have prepared and characterized the complexes [(p-cym)Ru(L2)Cl] (p-cym = η6-p-cymene; L2= CH3C(O)CHC(O)CH3, CF3C(O)CHC(O)CF3, CH3C(O)CHC(NPh)CH3, CF3C(O)CHC(NPh)CF3). We also report attempts to prepare similar complexes with ligands having pendant hydroxyl groups. All of the complexes were tested as catalysts for the transfer hydrogenation of acetophenone in aqueous formic acid at a pH of 4. The compounds with fluorinated ligands displayed no catalyst activity while the complexes with non-fluorinated ligands gave similar yields and turnover frequencies.
 

Undergraduate Research Poster Session
2:30 PM-4:30 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Chemical Education

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007