1. S. V. Konovalikhin, A. B. Zolotoi, L. O. Atovmyan, G. V. Shustov, S. N. Denisenko, and R. G. Kostyanovsky,Izv. Akad. Nauk, Ser. Khim., 1995, 500 [Russ. Chem. Bull., 1995,44, (Engl. Transl.)].
2. C. H. Bushweller, inAcyclic Organonitrogen Stereodynamics, Eds. J. B. Lambert and Y. Takeuchi, VCH, New York, 1992, p. 1.
3. L. Lunazzi, D. Macciantelli, and L. Grossi,Tetrahedron, 1983,39, 305.
4. W. B. Jennings and D. R. Boyd, inCyclic Organonitrogen Stereodynamics, Eds. J. B. Lambert and Y. Takeuchi, VCH, New York, 1992, p. 105.
5. H. Bock, I. Goebel, Z. Havlas, S. S. Liedle, and H. Oberhammer,Angew. Chem., Int. Ed. Engl., 1991,30, 187.