Coupling agent in the synthesis of dipolar polyamides for nonlinear optical applications1 and polypeptides.2 Also used to make β-keto sulfones and sulfoxides,3 lead sequestering agents,4 and β-enamino acid derivatives.5
1. Polym. Mater. Sci. Eng. 61, 936, (1989)
2. J. Mol. Evol. 30, 315, (1990)
3. J. Org. Chem. 54, 5620, (1989)
4. Inorg. Chem. 32, 3052, (1993)
5. Tetrahedron Lett. 34, 725, (1993)