Sodium Hydroxide → HCID 59403049, compound

Temperature

60 °C

To a solution of 3-amino-5-hexyloxy benzamide (0.9 g, 3.8 mmol) in tetrafluoroboric acid (20 ml), a solution of sodium nitrite (0.315 mg, 4.6 mmol) in water (5 ml) was added at 0° C. and stirred for 1 hr. Later it was allowed to come to RT and stirred for 1 hr followed by heating at 60° C. for 2 hrs. It was then basify to pH=14 using saturated NaOH solution and extracted with dichloromethane (3×30 ml). The solvent was evaporated to yield crude product, which was purified by column chromatography using silica gel (230-400 mesh) and dichloromethane as an eluent (100 mg, 11%). 1H NMR (DMSO-d6, 400 MHz with D2O): δ 0.88 (t, J=7.2 Hz, 3H), 1.32 (m, 2H), 1.41 (m, 4H), 1.72 (m, 2H), 4.0 (t, J=7.2 Hz, 2H), 6.97 (m, 1H), 7.22 (m, 1H), 7.28 (m, 1H), 7.52 (br s, 1H), 8.03 (br s, 1H). MS ES+ (238.0, 239.0), HPLC (method 7) Rt=11.34 min.

1. customto come to RT
2. stirringstirred for 1 hr
3. extractionextracted with dichloromethane (3×30 ml)
4. customThe solvent was evaporated
5. customto yield crude product, which
6. customwas purified by column chromatography

ORD record

ord-3cf7d53c03e5433481003389f20d965b

Source dataset

uspto-grants-2012_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08088791B2