Treatment of N-alkyl-N-allyl-pyrrolo-2-carboxamides with catalytic amounts of palladium derivatives gave regioselectively intramolecular cyclizations to generate bicyclic pyrrolo-fused structures. Pyrrolo[1,2-a]pyrazin-1-ones were achieved in high yields by an amination reaction, while pyrrolo[2,3-c]pyridin-7- ones and pyrrolo[3,2-c]pyridin-4-ones were obtained by an oxidative coupling process.
Pd-catalyzed intramolecular cyclization of pyrrolo-2-carboxamides: regiodivergent routes to pyrrolo-pyrazines and pyrrolo-pyridines / E.M. Beccalli, G. Broggini, M. Martinelli, G. Paladino. - In: TETRAHEDRON. - ISSN 0040-4020. - 61:5(2005 Feb), pp. 1077-1082.
Pd-catalyzed intramolecular cyclization of pyrrolo-2-carboxamides: regiodivergent routes to pyrrolo-pyrazines and pyrrolo-pyridines
E.M. BeccalliPrimo
;
2005
Abstract
Treatment of N-alkyl-N-allyl-pyrrolo-2-carboxamides with catalytic amounts of palladium derivatives gave regioselectively intramolecular cyclizations to generate bicyclic pyrrolo-fused structures. Pyrrolo[1,2-a]pyrazin-1-ones were achieved in high yields by an amination reaction, while pyrrolo[2,3-c]pyridin-7- ones and pyrrolo[3,2-c]pyridin-4-ones were obtained by an oxidative coupling process.Pubblicazioni consigliate
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