Ipriflavone synthesis
- Product Name:Ipriflavone
- CAS Number:35212-22-7
- Molecular formula:C18H16O3
- Molecular Weight:280.32
13057-72-2
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75-26-3
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15892-23-6
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35212-22-7
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Yield:35212-22-7 96.6%
Reaction Conditions:
with potassium carbonate in N-methyl-acetamide;ethanol;water;
Steps:
1.D Preparation of Ipriflavone (I)
EXAMPLE 1D Preparation of Ipriflavone (I) 7-Hydroxyisoflavone (35 kg), dimethylformamide (35 kg), potassium carbonate (35 kg) and isopropyl bromide (25 kg) were fed to a reactor. The reaction mass was heated to 70° C. for 6 h and added, at said temperature, with sec-butyl alcohol (90 kg) and water (300 kg). Then it was cooled. The solid was filtered and washed with water. The wet solid was dissolved in ethanol (200 kg) at boiling. The solution was cooled and the solid precipitate was filtered, washed with ethanol and dried at 70° C. 39.7 kg of 7-isopropoxy-isoflavone was obtained. Stoichiometric yield =96.6%. Chromatographic purity: (HPLC) ≥99.9%.
References:
US5973169,1999,A
13057-72-2
151 suppliers
$62.79/1g
75-26-3
456 suppliers
$10.00/10g
35212-22-7
374 suppliers
$27.00/1g
75-30-9
262 suppliers
$15.00/1g
13057-72-2
151 suppliers
$62.79/1g
35212-22-7
374 suppliers
$27.00/1g
1092975-69-3
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35212-22-7
374 suppliers
$27.00/1g
3669-41-8
104 suppliers
$36.89/1g
35212-22-7
374 suppliers
$27.00/1g