CHED 364 |
| The enantioselectivities of chiral titanium trisphenolate and bisphenolate complexes were studied by means of the asymmetric alkylation of benzaldehyde with diethylzinc. We anticipated that chiral binding sites on the metal ligand complex would lead to enantioselective production of 1-phenyl-1-propanol. The enantioselectivities for titanium trisphenolate ranged from 4-8 % ee while titanium bisphenolate showed 8-16 % ee. These low values suggest that the active catalyst in solution is different from that predicted or that the chiral coordination site at titanium is not selective. |
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Undergraduate Research Poster Session: Organic Chemistry
11:00 AM-1:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |