Technology Process of 3′-(5-carbamimidoyl-2H-spiro[benzofuran-3,4′-piperidine]-1′-ylcarbonyl)biphenyl-3-ylboronic acid hydrochloride
There total 5 articles about 3′-(5-carbamimidoyl-2H-spiro[benzofuran-3,4′-piperidine]-1′-ylcarbonyl)biphenyl-3-ylboronic acid hydrochloride which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
C32H33BN2O4;
With
hydrogenchloride;
In
ethanol;
at 20 ℃;
for 4h;
With
ammonia;
In
methanol;
for 12h;
Further stages;
Sealed tube;
Heating;
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: thionyl chloride
1.2: 4 h / 65 °C
2.1: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate / dimethyl sulfoxide / 4 h / 80 °C / Inert atmosphere
3.1: lithium hydroxide; water / tetrahydrofuran / 4 h / 20 °C
4.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / dichloromethane / 12 h / 20 °C
5.1: hydrogenchloride / ethanol / 4 h / 20 °C
5.2: 12 h / Sealed tube; Heating
With
hydrogenchloride; dmap; thionyl chloride; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; water; potassium acetate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; lithium hydroxide;
In
tetrahydrofuran; ethanol; dichloromethane; dimethyl sulfoxide;
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate / dimethyl sulfoxide / 4 h / 80 °C / Inert atmosphere
2.1: lithium hydroxide; water / tetrahydrofuran / 4 h / 20 °C
3.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; dmap / dichloromethane / 12 h / 20 °C
4.1: hydrogenchloride / ethanol / 4 h / 20 °C
4.2: 12 h / Sealed tube; Heating
With
hydrogenchloride; dmap; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; water; potassium acetate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; lithium hydroxide;
In
tetrahydrofuran; ethanol; dichloromethane; dimethyl sulfoxide;