1. D. J. Anderson, T. L. Gilchrist, D. C. Horwell and C. W. Rees, J. Chem. Soc. (C), 576 (1970).
2. Hoesch and Dreiding have added N-aminophthalimide to bicyclo[2.2.1]heptadiene. They obtained the expected aziridine, but no experimental details are available. [;Hoesch;Chimia,1969
3. G. R. Meyer and P. Cipolla, unpublished observations.
4. J. E. Franz and C. Osuch, Chem. Ind. (London), 2058 (1964).