SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF CHIRAL AMINE ALCOHOL COMPLEXES OF ALUMINUM

The syntheses and full characterization of chiral amine alcohol comple xes of aluminum are reported. These complexes are of two general formu lae, those resulting from the reaction of 1 equiv of an aluminum reage nt with an amine alcohol, [AA-AlR(2)](2) (where AA = phenylglycinol (P Gly), R = Me (1), Et (2), SiMe(3) (3); phenylalaninol (PAla), R = Me ( 4), Et (5), SiMe(3) (6); and diphenylalaninol (DPAla), R = Me (7), Et (8), SiMe(3) (9), and the series resulting from the reaction of 2 equi v of AlMe(3) with an amine alcohol, AA(AlMe(2))-AlMe(3) (where AA = PG ly (10), PAla (11), and DPAla (12)). These compounds significantly inc rease the number of chiral group 13 complexes that have been reported in the literature. Additionally, the crystal structures of 5, 6, and 1 1 have been obtained.