Technology Process of CUSTOMS SYNTHESIS
There total 7 articles about CUSTOMS SYNTHESIS which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
2-bromobenzo[b]naphtho[2,3-d]furan;
With
n-butyllithium;
In
tetrahydrofuran;
at -78 ℃;
for 2h;
Inert atmosphere;
Trimethyl borate;
In
tetrahydrofuran;
at -78 - 20 ℃;
for 12h;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: tetrakis(triphenylphosphine) palladium(0); sodium carbonate / water; toluene / 8 h / Reflux; Inert atmosphere
2.1: boron tribromide / dichloromethane / 24 h / 0 - 20 °C
3.1: potassium carbonate / 1-methyl-pyrrolidin-2-one / 2 h / 120 °C
4.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 - 0 °C
4.2: 5.17 h / -78 - 20 °C
4.3: 1 h / 20 °C
With
tetrakis(triphenylphosphine) palladium(0); n-butyllithium; boron tribromide; sodium carbonate; potassium carbonate;
In
tetrahydrofuran; 1-methyl-pyrrolidin-2-one; hexane; dichloromethane; water; toluene;
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: n-butyllithium / tetrahydrofuran; hexane / 4 h / -78 - 20 °C
1.2: 5.17 h / -78 - 20 °C
1.3: 1 h / 20 °C
2.1: tetrakis(triphenylphosphine) palladium(0); sodium carbonate / water; toluene / 8 h / Reflux; Inert atmosphere
3.1: boron tribromide / dichloromethane / 24 h / 0 - 20 °C
4.1: potassium carbonate / 1-methyl-pyrrolidin-2-one / 2 h / 120 °C
5.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 - 0 °C
5.2: 5.17 h / -78 - 20 °C
5.3: 1 h / 20 °C
With
tetrakis(triphenylphosphine) palladium(0); n-butyllithium; boron tribromide; sodium carbonate; potassium carbonate;
In
tetrahydrofuran; 1-methyl-pyrrolidin-2-one; hexane; dichloromethane; water; toluene;