1. Carbachlorins
2. The resilience of the porphyrin macrocycle leads to the survival of metalloporphyrins as biological fossils in organic-rich sediments such as oil shales and petroleum. Baker, E. W.; Palmer, S. E. InThePorphyrins; Dolphin, D., Ed.; Academic Press: New York, 1978; Vol. 1, pp 486−552. Callot, H. J. InTheChlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, 1991; pp 339−364.
3. The synthesis of [18]annulene trisulphide
4. Lash, T. D. InTheMacmillanEncyclopediaofChemistry; Lagowski, J. J., Ed.; Simon & Schuster Macmillan: New York, 1997, Vol. 3, pp 1239−1245.