Synthesis

Synthesis of isoflavones from 2′-hydroxychalcones using poly [4-(diacetoxy) iodo] styrene or related hypervalent iodine reagent

…, M Maruyama, T Tokuoka, M Tsukayama

Index: Kawamura, Yasuhiko; Maruyama, Masashi; Tokuoka, Takanori; Tsukayama, Masao Synthesis, 2002 , # 17 p. 2490 - 2496

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Citation Number: 37

Abstract

Abstract Isoflavones are synthesized in an one-pot reaction by treating the hypervalent iodine (III) reagent,[hydroxy (tosyloxy) iodo] benzene (HTIB, Koser's reagent) with 2′- benzoyloxychalcones in MeOH. A combined use of (diacetoxyiodo) benzene (DIB)/p- toluenesulfonic acid (TsOH) is also effective for the same purpose. As an extension of these monomeric reagents, polymer-supported DIB {PSDIB, poly [4-(diacetoxy) iodo] styrene} ...