Boron tribromide → HCID 21957107, compound
Reaction equation
[ClH:1].[N:2]1([CH2:8][CH2:9][O:10][C:11]2[CH:37]=[CH:36][C:14]([O:15][C:16]3[C:25]4[C:20](=[CH:21][C:22]([O:26]C)=[CH:23][CH:24]=4)[CH:19]=[CH:18][C:17]=3[C:28]3[CH:33]=[CH:32][CH:31]=[C:30]([O:34]C)[CH:29]=3)=[CH:13][CH:12]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1.B(Br)(Br)Br>C(Cl)Cl>[ClH:1].[N:2]1([CH2:8][CH2:9][O:10][C:11]2[CH:12]=[CH:13][C:14]([O:15][C:16]3[C:25]4[C:20](=[CH:21][C:22]([OH:26])=[CH:23][CH:24]=4)[CH:19]=[CH:18][C:17]=3[C:28]3[CH:33]=[CH:32][CH:31]=[C:30]([OH:34])[CH:29]=3)=[CH:36][CH:37]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3]1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
A solution was prepared of 1.5 g (2.9 mmol) of 1-[4-[2-(1-piperidinyl)ethoxy]phenoxy]-2-(3-methoxyphenyl)-6-methoxynaphthalene hydrochloride in 30 mL of CH2Cl2 and the solution was cooled to 0° C. under a nitrogen atmosphere. To this solution was added 1.09 mL (2.89g, 11.5 mmol) of BBr3 and the reaction was allowed to proceed for two hours at 0° C. The reaction was quenched by the addition of aqueous NaHCO3 solution (50 mL). The reaction mixture was extracted with CHCl3. The organic layer was washed with brine, dried with Na2SO4, and evaporated to dryness. The residue was suspended in THF and filtered. To the filtrate was added 1 mL of 5N HCl and the solvents were removed by evaporation. This yielded 0.99 g of the title compound as a tan amorphous powder.
Workup
- customThe reaction was quenched by the addition of aqueous NaHCO3 solution (50 mL)
- extractionThe reaction mixture was extracted with CHCl3
- washThe organic layer was washed with brine
- dry with materialdried with Na2SO4
- customevaporated to dryness
- filtrationfiltered
- additionTo the filtrate was added 1 mL of 5N HCl
- customthe solvents were removed by evaporation
Sources & evidence
- ORD record
- ord-d9ab73de98584e22aae0e127483d0392
- Source dataset
- uspto-grants-2003_07
- Patent number
- US06593345B1
Reaction notes
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