Technology Process of 4-(3-amino-2-hydroxyphenyl)furan-2-carboxylic acid hydrobromide
There total 8 articles about 4-(3-amino-2-hydroxyphenyl)furan-2-carboxylic acid hydrobromide which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
4-(3-amino-2-methoxyphenyl)furan-2-carboxylic acid;
With
boron tribromide;
In
dichloromethane;
at 20 ℃;
for 4.5h;
With
methanol;
In
dichloromethane;
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: sodium nitrate; sulfuric acid / water / 2 h / 20 - 25 °C
2.1: potassium carbonate / acetone / 40 h / 70 °C
3.1: potassium acetate / tetrakis(triphenylphosphine) palladium(0) / etheroxalic acid dimethyl ether / 17 h / Reflux
4.1: potassium carbonate / tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane; water / 2.5 h / Reflux
4.2: pH 3
5.1: ammonium formate / palladium 10% on activated carbon / ethyl acetate / 3 h / Reflux
6.1: boron tribromide / dichloromethane / 4.5 h / 20 °C
With
sodium nitrate; sulfuric acid; ammonium formate; potassium acetate; boron tribromide; potassium carbonate;
tetrakis(triphenylphosphine) palladium(0); palladium 10% on activated carbon;
In
1,4-dioxane; dichloromethane; etheroxalic acid dimethyl ether; water; ethyl acetate; acetone;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: ammonium hydroxide; zinc; water / 6 h / 20 °C
1.2: pH 3
2.1: potassium carbonate / tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane; water / 2.5 h / Reflux
2.2: pH 3
3.1: ammonium formate / palladium 10% on activated carbon / ethyl acetate / 3 h / Reflux
4.1: boron tribromide / dichloromethane / 4.5 h / 20 °C
With
ammonium hydroxide; water; ammonium formate; boron tribromide; potassium carbonate; zinc;
tetrakis(triphenylphosphine) palladium(0); palladium 10% on activated carbon;
In
1,4-dioxane; dichloromethane; water; ethyl acetate;