Facile synthesis of azocino[4,3-b]indoles by ring-closing metathesis

The azocino[4,3-b]indole system, tricyclic substructure of the indole alkaloids apparicine and ervaticine, is efficiently assembled by ring-closing metathesis of 2-allyl-3-(allylaminomethyl)indoles. The metathesis sites are introduced into the indole nucleus by reductive amination of a 3-formyl deri...

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Detalles Bibliográficos
Autores: Bennasar Fèlix, M. Lluïsa, Zulaica Gallego, Ester, Solé Arjó, Daniel, Alonso Serrano, Sandra
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2007
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/160425
Acceso en línea:https://hdl.handle.net/2445/160425
Access Level:acceso abierto
Palabra clave:Alcaloides
Metàtesi (Química)
Síntesi orgànica
Alkaloids
Metathesis (Chemistry)
Organic synthesis
Descripción
Sumario:The azocino[4,3-b]indole system, tricyclic substructure of the indole alkaloids apparicine and ervaticine, is efficiently assembled by ring-closing metathesis of 2-allyl-3-(allylaminomethyl)indoles. The metathesis sites are introduced into the indole nucleus by reductive amination of a 3-formyl derivative with allylamine, followed by a-lithiation with subsequent electrophilic trapping with acrolein.