A ‘push–pull’ tropylium-fused aminoporphyrazine
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Crossover Linstead macrocyclization of cycloheptatrienylmaleonitrile and (dimethylamino)-maleonitrile gave access to an unsymmetrical (A3B) porphyrazine bearing six peripheral amino substituents and a fused cycloheptatrienyl ring. Subsequent hydride abstraction gave a tropylium-fused aminoporphyrazine, which contains both strongly electron-donating and withdrawing groups and thus can be labelled as a 'push-pull' macrocycle. Detailed structural studies of this novel porphyrazine are described. © 2009 Elsevier Ltd. All rights reserved.
author list (cited authors)
Ruggiero, A., Fuchter, M. J., Kokas, O. J., Negru, M., White, A., Haycock, P. R., Hoffman, B. M., & Barrett, A.