4H-1-Benzopyran-4-one, 7-[[6-O-(6-deoxy-α-L-mannopyranosyl)-β-D-glucopyranosyl]oxy]-2,3-dihydro-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)- synthesis
- Product Name:4H-1-Benzopyran-4-one, 7-[[6-O-(6-deoxy-α-L-mannopyranosyl)-β-D-glucopyranosyl]oxy]-2,3-dihydro-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-
- CAS Number:64726-90-5
- Molecular formula:C28H34O15
- Molecular Weight:610.57
64726-90-5
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520-33-2
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Yield:520-33-2 88%
Reaction Conditions:
with sulfuric acid in ethanol;water; for 4 h;Reflux;
Steps:
Naringenin:
General procedure: Naringenin: Naringin (20 g) was dissolved in ethanol (150 mL, 80%),and conc. H2SO4 (10 mL) was added dropwise. The reaction mixturewas heated under reflux for 4 h, then cooled to room temperatureand poured into ice water. The resulting precipitate was filtered,recrystallised from methanol, and dried under vacuum to affordnaringenin as a yellow solid: 9.12 g; 90%;
References:
Li, Yue;Cai, Shuanglian;He, Kailin;Wang, Qiuan [Journal of Chemical Research,2014,vol. 38,# 5,p. 287 - 290]
64726-90-5
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520-27-4
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