Identification of novel chiral aluminium containing oxonium cations in the enantioselective hydrogenation of ethyl pyruvate catalyzed using cinchonedine modified Pt-alumina in acetic acid

Bucsi I; Szollosi G; Bartok T; Bartok M

Reaction Kinetics and Catalysis Letters, Vol.85, No.2, 361-366, 2005

DOI10.1007/s11144-005-0282-6 Export Citation

Identification of novel chiral aluminium containing oxonium cations in the enantioselective hydrogenation of ethyl pyruvate catalyzed using cinchonedine modified Pt-alumina in acetic acid

Bucsi I, Szollosi G, Bartok T, Bartok M

The first identification of aluminium containing oxonium cations having chiral atomic groups is described which may play a role in enantioselective hydrogenation of ethyl pyruvate using Pt-alumina catalyst in AcOH. The structure of these cations at m/z = 509 and m/z = 567 is: [O{Al(OAc)(2)}(2)Al(OPy.OLt)](+) and [O(AlOAc.OLt)(2)Al(OPy)(2)](+).

Keywords:hydrogenation;enantioselective;Pt-alumina;oxonium cations;chirality;ESI-ion-trap-mass spectrometry