Opticallyactive 2-aryl-1,3-oxazolines, such as aromatic carbocycles, heterocycle-binding 4-benzyl (or phenyl)-1,3-oxazolines and their 5-benzyl (or phenyl)-1,3-oxazoline isomers were successfully prepared through a bromotriphenylphosphonium salt promoted aziridine ring formation and ring opening sequential process involving tandem one-pot cyclization of chiral 2-amino-3-phenylpropanol or 2-amino-2-phenylethanol