A novel approach to the indoloquinoline alkaloids cryptotackieine and cryptosanguinolentine by application of cyclization of o-vinylsubstituted arylheterocumulenes
Autor: | Santiago Delgado, Pilar M. Fresneda, Pedro Molina |
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Rok vydání: | 2001 |
Předmět: | |
Zdroj: | Tetrahedron. 57:6197-6202 |
ISSN: | 0040-4020 |
DOI: | 10.1016/s0040-4020(01)00597-x |
Popis: | 1-Methyl-3-( o -azidophenyl)quinoline-2-one prepared by cyclization of the corresponding o -vinylsubstituted isocyanate under microwave irradiation is directly converted into cryptotackieine 1 by an intramolecular aza-Wittig reaction with trimethylphosphine; alternatively heating followed by reduction of the resulting indoloquinoline derivative provided cryptosanguinolentine 2 . |
Databáze: | OpenAIRE |
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