Technology Process of 1,8-Dihydroxy-3,5,6,7-tetramethoxyxanthone
There total 5 articles about 1,8-Dihydroxy-3,5,6,7-tetramethoxyxanthone which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
hydrogen bromide;
In
acetic acid;
at 100 ℃;
for 0.25h;
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 88 percent / KF / dimethylformamide / 1 h / 100 - 110 °C
2: 1.) aq. Na2S2O4, 2.) conc. H2SO4 / 1.) CH2Cl2, 2.) 5 min (room temperature), 15 - 20 min, 60 deg C
3: 84 percent / K2CO3 / acetone
4: 46 percent / HBr / acetic acid / 0.25 h / 100 °C
With
potassium fluoride; sodium dithionite; sulfuric acid; hydrogen bromide; potassium carbonate;
In
acetic acid; N,N-dimethyl-formamide; acetone;
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 88 percent / KF / dimethylformamide / 1 h / 100 - 110 °C
2: 1.) aq. Na2S2O4, 2.) conc. H2SO4 / 1.) CH2Cl2, 2.) 5 min (room temperature), 15 - 20 min, 60 deg C
3: 84 percent / K2CO3 / acetone
4: 46 percent / HBr / acetic acid / 0.25 h / 100 °C
With
potassium fluoride; sodium dithionite; sulfuric acid; hydrogen bromide; potassium carbonate;
In
acetic acid; N,N-dimethyl-formamide; acetone;
