New Strategies for N-Heterocyclic Carbenes Catalyzed Annulations
This thesis focuses on NHC-catalyzed annulation of nitroalkenes, enals and ?,?-unsaturated carboxylic acids. (1) NHCs were found to be efficient catalysts for the [4+2] annulation of ?-substituted nitroalkenes. The scope of Rauhut-Currier reaction was successfully extended to the most challenging ?-substituted alkenes by this method; (2) Enals were successfully used for [4+2] annulations with azodicarboxylates catalyzed by NHC via ?-addition. Highly enantiopure tetrahydropyridazinones and ?-amino acid derivatives could be easily prepared by subsequent transformations of the resulting dihydropyridazinones. (4) The readily available ?,?-unsatur…
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Produktdetails
- ISBN: 978-981-10-2899-1
- EAN: 9789811028991
- Produktnummer: 22031006
- Verlag: Springer-Verlag GmbH
- Sprache: Englisch
- Erscheinungsjahr: 2016
- Seitenangabe: 123 S.
- Plattform: PDF
- Masse: 10'148 KB
- Auflage: 1st ed. 2017
- Abbildungen: 53 schwarz-weiße und 13 farbige Abbildungen, 10 farbige Tabellen, Bibliographie
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