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ChemicalBook CAS DataBase List 4-(benzofuran-2-yl)piperidine hydrochloride
54402-12-9

4-(benzofuran-2-yl)piperidine hydrochloride synthesis

1synthesis methods
407-25-0 Synthesis
Trifluoroacetic anhydride

407-25-0
450 suppliers
$9.00/1g

Ethanone, 1-[4-(2-benzofuranyl)-1-piperidinyl]-2,2,2-trifluoro-

1382136-34-6
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Yield:-

Reaction Conditions:

with triethylamine in dichloromethane at 0 - 20;

Steps:



Trifluoroacetic anhydride (9.41 mL) is added dropwise to mixture of 4-benzofuran-2- yl-piperidine hydrochloride (8.00 g), and triethylamine (14.19 mL) in dichloromethane (80 mL) at 0 °C. The resulting mixture is warmed to room temperature, washed with water and aqueous NaHC03 solution, dried (MgS04), and the solvent is evaporated. The crude product is used without further purification. Yield: 1 1 .50 g (crude); LC (method 3): tR = 1 .39 min; Mass spectrum (EST): m/z = 298 [M+H]+.

References:

WO2012/80476,2012,A1 Location in patent:Page/Page column 75

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