Triethylamine → (4-Benzyl-4-hydroxypiperidin-1-yl)(5-bromo-1,3-benzodioxol-4-yl)methanone

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	4-Benzyl-4-piperidinol	HCID 98152	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	5-Bromobenzo(1,3)dioxole-4-carboxylic acid	HCID 12514106	—
Solvent	Water	HCID 962	—
Solvent	Dimethylformamide	HCID 6228	—
Product	(4-Benzyl-4-hydroxypiperidin-1-yl)(5-bromo-1,3-benzodioxol-4-yl)methanone	HCID 86680850	99.6%

Reaction Steps

A suspension of 5-bromo-1,3-benzodioxole-4-carboxylic acid (0.50 g), 4-benzyl-4-hydroxypiperidine (0.59 g), HATU (1.2 g) and triethylamine (1.4 mL) in DMF (5.0 mL) was stirred overnight at room temperature. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.85 g).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08871766B2
Source dataset	uspto-grants-2014_10
ORD ID	ord-576255cca6fd41c89cc28fefbe945f39
Source note	uspto-grants-2014_10