As. Anslow et al., SYNTHESIS OF ALPHA-PHENYL PROLINE DERIVATIVES VIA 1,3-DIPOLAR CYCLOADDITION OF CHIRAL STABILIZED AZOMETHINE YLIDS, Tetrahedron : asymmetry, 6(10), 1995, pp. 2465-2468
The preparation of (3S, 5R)-3,5-diphenylmorpholinone 1 and subsequent
diastereoselective 1,3-dipolar cycloaddition of its formaldehyde deriv
ed azomethine ylid is described. Removal of the chiral template furnis
hes a-phenyl proline derivatives.