Facile synthesis of the tricyclic core of sarain A. 3-Oxidopyridinium betaine cycloaddition approach

[formula: see text] A new approach to a suitably functionalized tricyclic core of sarains has been developed by means of Katritzky's cycloaddition using 3-oxidopyridinium betaines. A key step was the regioselective differentiation of the two nearly identical hydroxy groups derived from oxidativ...

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Veröffentlicht in:	Organic letters 1999-12, Vol.1 (12), p.2017-2019
Hauptverfasser:	Sung, M J, Lee, H I, Chong, Y, Cha, J K
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Betaine - chemistry Bridged-Ring Compounds - chemical synthesis Cyclization Oxidation-Reduction Porifera - chemistry Pyridinium Compounds - chemistry
Online-Zugang:	Volltext
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