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, 1 H), 7.76 (m, 2 H), 7.44 (m, 3 H), 3.78 (dt, J=6.3 Hz and 1.3 Hz, 2 H), 3.52 (t, J=6.5 Hz, 2 H), 2.31 (pent, J=6.4 Hz, 2 H); 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-3975a90c40324c82936470db682a9f5c

Source dataset

uspto-grants-2015_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09217010B2