Synthesis of methylenebis (4-hydroxy-2-pyrone) or methylenebis (4-hydroxycoumarin) derivatives by organic solid state reaction

H Hagiwara, N Fujimoto, T Suzuki…

Index: Hagiwara, Hisahiro; Fujimoto, Norikazu; Suzuki, Toshio; Ando, Masayoshi Heterocycles, 2000 , vol. 53, # 3 p. 549 - 552

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Citation Number: 30

Abstract

Graduate School of Science and Technology,a and Faculty of Engineering,b ... Niigata University, 8050, 2 no-cho, Ikarashi, Niigata 950-2181, Japan ... Abstract–Methylenebis(4-hydroxy -2-pyrone) or methylenebis(4-hydroxy- coumarin) derivatives (5) have been synthesized from 4-hydroxy-2-pyrones or 4- hydroxycoumarin (3) with aldehydes (4) by organic solid state reaction. ... The methylene bridged biscoumarins namely dicoumarol (1) and coumetarol ...