Kontaktujte nás | Jazyk: čeština English
| Název: | Limitations of the Wittig-Horner-type annulation of fluorobutenolide moiety to 3-hydroxyquinoline-2,4(2H,3H)-diones. Novel modifications of the Perkow reaction including fluorinated acyloxy leaving groups | ||||||||||
| Autor: | Pomeisl, K.; Kvíčala, J.; Paleta, O.; Klásek, Antonín; Kafka, Stanislav; Kubelka, V.; Havlíček, J.; Čejka, J. | ||||||||||
| Typ dokumentu: | Recenzovaný odborný článek (English) | ||||||||||
| Zdrojový dok.: | Tetrahedron. 2007, vol. 63, issue 42, p. 10549-10561 | ||||||||||
| ISSN: | 0040-4020 (Sherpa/RoMEO, JCR) | ||||||||||
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| DOI: | https://doi.org/10.1016/j.tet.2007.07.058 | ||||||||||
| Abstrakt: | 3-(Fluoroacyloxy)quinoline-2,4(1H,3H)-diones react with triethyl phosphite to afford either the product of the Perkow reaction or the corresponding 4-ethoxyquinolin-2(1H)-one. In both reactions, the fluorocarboxylate anion acts as the leaving group. For the corresponding 3-(fluoroiodoacetoxy) derivative this observation precludes the application of the intramolecular Wittig-Horner synthesis to modify quinoline-2,4(1H, 3H)-diones by the annulation of a fluorinated but-2-enolide moiety. | ||||||||||
| Plný text: | https://www.sciencedirect.com/science/article/pii/S0040402007012896 | ||||||||||
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