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Reactivity of 2-Halo-2H-azirines. 1. Reactions with Nucleophiles
Melo, Teresa M. V. D. Pinho e; Lopes, Cláudia S. J.; Gonsalves, António M. d'A. Rocha; Beja, Ana M.; Paixão, José A.; Silva, Manuela R.Nucleophilic substitution reactions of 2-halo-2H-azirines 1a, 1b, 1d, and 1e with potassium phthalimide and aniline allowed the preparation of new substituted 2H-azirines 2−5. The reactions of 2-bromo-2H-azirine 1a with methylamine led to the synthesis of α-diimines 7 and 8. 2-Halo-2H-azirines were also established as building blocks for the synthesis of a range of heterocyclic compounds, namely, quinoxalines 1...
Date: 2002
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Origin: Estudo Geral - Universidade de Coimbra
A New Route to Cross-Conjugated Bis(enamines) and an Unusual Reaction with DDQ
Melo, Teresa M. V. D. Pinho e; Cabral, Ana M. T. D. P. V.; Gonsalves, António M. d'A. Rocha; Beja, Ana M.; Paixão, José A.; Silva, Manuela R.
Date: 1999
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Origin: Estudo Geral - Universidade de Coimbra