In an extension of our studies on the thermal decomposition of Amadori compounds (l), we have identified 2,3-dihydro-3,5-dihydroxy-6-methyl-4&pyran-4-one (Ia) as the major solid product that is volatilized during the pyrolysis of l-deoxy-l-(k-prolino)-&fructose at 138"/1 mm. The structural assignmen
β¦ LIBER β¦
A saponin conjugated with 2,3-dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4-one from Dolichos lablab
β Scribed by Yumiko Yoshiki; Jin H. Kim; Kazuyoshi Okubo; Ichiro Nagoya; Terumi Sakabe; Nobuhiro Tamura
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 256 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0031-9422
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## Abstract The synthesis and reactivity studies of 4βhydroxyβ6βmethylβ3β(5βphenylβ2__E__,4__E__βpentadienβ1βoyl)β2__H__βpyranβ2βone **2** with nucleophiles are reported. Reactions of **2** with hydrazine derivatives gave new pyrazoleβtype com pounds while the reaction with __ortho__βphenylenediami