Synthesis of Procyanidin B3 and Its Anti-inflammatory Activity. The Effect of 4-Alkoxy Group of Catechin Electrophile in the Yb(OTf)3-Catalyzed Condensation with Catechin Nucleophile

Yb(OTf)3-catalyzed equimolar condensation of the benzylated catechin with various 4-alkoxy catechin derivatives was studied. In particular, the reaction using 4-(2′′-ethoxyethoxy)flavan derivative gave good yield with excellent stereoselectivity. The condensed product was successfully converted to p...

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Veröffentlicht in:	Journal of organic chemistry 2010-07, Vol.75 (14), p.4884-4886
Hauptverfasser:	Oizumi, Yukiko, Mohri, Yoshihiro, Hirota, Mitsuru, Makabe, Hidefumi
Format:	Artikel
Sprache:	eng
Schlagworte:	Alicyclic compounds, terpenoids, prostaglandins, steroids Chemistry Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives Organic chemistry Preparations and properties Terpenoids
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