Triethylamine → 3-Bromophenethylamine

Triethylamine (19.2 g; 100.5 mmol) was dissolved in 40% solution of methylamine in methanol (150 ml). While the resultant solution was stirred in an ice bath, a solution of 3-bromobenzylbromide (25.1 g; 100.5 mmol) in methanol (40 ml) was added dropwise. After completion of the addition, the mixture was removed from the ice bath, and stirred for 15 hours at room temperature. Methanol and excess methylamine were evaporated under reduced pressure, and the residue was taken up in a mixture of ether and 2N hydrochloric acid (100 ml-100 ml). The aqueous layer was alkalinized with aqueous sodium hydroxide solution, and the mixture was extracted with chloroform (100 ml). The organic layer was washed with saturated aqueous sodium bicarbonate solution and with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, to thereby yield 12.7 g of the target compound as a yellow-orange oily substance (yield: 63.2%).

1. additionAfter completion of the addition
2. customthe mixture was removed from the ice bath
3. customMethanol and excess methylamine were evaporated under reduced pressure
4. additionthe residue was taken up in a mixture of ether and 2N hydrochloric acid (100 ml-100 ml)
5. extractionthe mixture was extracted with chloroform (100 ml)
6. washThe organic layer was washed with saturated aqueous sodium bicarbonate solution and with saturated brine
7. dry with materialdried over anhydrous sodium sulfate
8. customThe solvent was evaporated under reduced pressure

ORD record

ord-d0add428a02d479ca9224199edebf08d

Source dataset

uspto-grants-2003_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06586633B1