Reinvestigation of the synthesis of isoliquiritigenin: application of Horner-Wadsworth-Emmons reaction and Claisen-Schmidt condensation |
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| Authors: | Sano Shigeki Okubo Yoshinori Handa Atsushi Nakao Michiyasu Kitaike Syuji Nagao Yoshimitsu Kakegawa Hisao |
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| Affiliation: | Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima, Japan. ssano@ph.tokushima-u.ac.jp |
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| Abstract: | ![]()
Isoliquiritigenin [ILG, (E)-1] was readily prepared via the Horner-Wadsworth-Emmons reactions using β-ketophosphonates 5a, b. An improved protocol for the synthesis of (E)-1 via the Claisen-Schmidt condensation was also presented. |
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