3-Aminobenzonitrile → HCID 66632857, compound

To a stirred solution of 3-aminobenzonitrile (2.50 g, 21.10 mmol) in anhydrous DMSO (30 mL) at 0° C. was added NaH (0.61 g, 25.39 mmol) portionwise, and the mixture was stirred at room temperature for 20 min and then treated with bromoacetaldehyde diethyl acetal (4.20 g, 21.10 mmol). After 2 h, to it, saturated aqueous NH4Cl (20 mL) was added slowly at 0° C., and the reaction mixture was extracted with EtOAc (2×50 mL). The EtOAc solution was dried over anhydrous Na2SO4, filtered, and evaporated to dryness under reduced pressure. The residue was purified by MPLC on silica gel using EtOAc and hexane as eluent to give 3-(2,2-diethoxyethylamino)benzonitrile (0.86 g, 17%) as a light orange oil. 1H NMR (400 MHz, CDCl3): δ 7.22 (td, 1H, J=7.8, 0.6 Hz), 6.97 (m, 1H), 6.84-6.81 (m, 2H), 4.67 (t, 1H, J=5.4 Hz), 3.77-3.69 (m, 2H), 3.61-3.53 (m, 2H), 3.24 (d, 2H, J=5.6 Hz), 1.24 (t, 6H, J=7.0 Hz).

1. waitAfter 2 h
2. extractionthe reaction mixture was extracted with EtOAc (2×50 mL)
3. dry with materialThe EtOAc solution was dried over anhydrous Na2SO4
4. filtrationfiltered
5. customevaporated to dryness under reduced pressure
6. customThe residue was purified by MPLC on silica gel

ORD record

ord-b691ca109e0f449e99696bde1905cf8f

Source dataset

uspto-grants-2011_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08080568B1