Benzylethanolamine → HCID 68580640, compound

To a solution of 3-bromo-2,6-difluorobenzoic acid (2.00 g, 8.44 mmol) and N,N-dimethylformamide (0.1 ml) in tetrahydrofuran (40 ml) was added dropwise oxalyl chloride (1.47 ml, 16.9 mmol) in a water bath, and the mixture was stirred at room temperature for 2 hr. The solvent was evaporated under reduced pressure. The residue was added under ice-cooling to a solution of N-benzylethanolamine (1.28 ml, 8.44 mmol) and triethylamine (1.77 ml, 12.7 mmol) in tetrahydrofuran (50 ml), and the mixture was stirred at 0° C. for 15 min and at room temperature for 1 hr. The reaction mixture was poured into ice water, and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was recrystallized from a mixed solution of diethyl ether and diisopropyl ether to give the desired product (2.10 g, 67.3%) as a solid.

1. customThe solvent was evaporated under reduced pressure
2. additionThe residue was added under ice-
3. stirringthe mixture was stirred at 0° C. for 15 min and at room temperature for 1 hr
4. extractionthe mixture was extracted with ethyl acetate
5. washThe extract was washed with water
6. dry with materialdried over anhydrous magnesium sulfate
7. customThe solvent was evaporated under reduced pressure
8. customThe residue was recrystallized from a mixed solution of diethyl ether and diisopropyl ether

ORD record

ord-a91149b4e3fd4cecb83b7caa739e2d07

Source dataset

uspto-grants-2012_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08247403B2