Benzaldehyde → Benzylidene-(3-bromo-1-propylamine)

The hydrobromide salt of 3-bromopropylamine (5.364 g, 24.50 mmol) was treated with triethylamine (4 mL) in CHCl3 (100 mL) and allowed to stir at room temperature for 5 min. Benzaldehyde (2.000 g, 18.85 mmol) and magnesium sulfate (6.000 g) were added and the reaction mixture was allowed to stir at room temperature for 16 h. The reaction mixture was filtered and the filter pad was washed with CHCl3 (50 mL). The filtrate was washed with water (3×50 mL), sat NaCl (50 mL), dried over sodium sulfate, and concentrated to provide a yellow oil (4.262 g, 100%). IR (film) 1645, 754, and 693 cm−1; 1H NMR (CDCl3) δ 8.34 (s, 1H), 7.76 (m, 2H), 7.44 (m, 3H), 3.78 (dt, J=6.3 Hz and 1.3 Hz, 2H), 3.52 (t, J=6.5 Hz, 2H), 2.31 (pent, J=6.4 Hz, 2H); ESIMS m/z (rel intensity) 226/228 (MH+, 100/91). Anal. (C10H12BrN) C, H, N.

1. stirringto stir at room temperature for 16 h
2. filtrationThe reaction mixture was filtered
3. washthe filter pad was washed with CHCl3 (50 mL)
4. washThe filtrate was washed with water (3×50 mL)
5. dry with materialdried over sodium sulfate
6. concentrationconcentrated

ORD record

ord-9d852a14e3d9442da6191e6afc168858

Source dataset

uspto-grants-2014_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08829022B2