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Communication | Regular issue | Vol 43, No. 7, 1996, pp.1361-1364
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7415
Variations in the Chemical Shift of the 5-Hydroxyl Proton of 7-O-Prenylated Flavanones

Toshio Fukai and Taro Nomura*

*Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan

Abstract

In 1H nmr examination of 6- or 8-phenylated flavanone 7-methyl and 7-prenyl ethers, the signals of hydrogen-bonded hydroxyl proton appearedin relatively narrow region. Relatively large solvent effect was observedon the signal of 6-prenylflavanone 7-methyl and 7-prenyl ethers.