Hydrochloric Acid → 1-(4-Nitrophenyl)ethanamine

A suspension of 4′-nitroacetophenone (5.00 g, 30.3 mmol) and ammonium acetate (28.4 g, 378 mmol) in MeOH (75 mL) was stirred at room temperature for 20 minutes. Sodium cyanoborohydride (1.38 g, 21.2 mmol) was added and the resulting mixture stirred for 48 hours. Aqueous HCl (6 M, 40 mL) was added and the mixture was filtered. The filtrate was washed with Et2O (3×40 mL) then the aqueous phase was basified to pH 10 using KOH. The basified aqueous layer was extracted with DCM (3×30 mL) and the combined organic phases were dried (MgSO4), filtered and evaporated in vacuo to give the title compound A129 as an amorphous orange solid (3.00 g, 60%); 1H NMR (300 MHz, CDCl3) δ 8.22 (d, J=8.6 Hz, 2H), 7.57 (d, J=8.6 Hz, 2H), 4.27-4.33 (m, 1H), 2.20 (brs, 2H), 1.45 (d, J=6.6 Hz, 3H).

1. stirringthe resulting mixture stirred for 48 hours
2. filtrationthe mixture was filtered
3. washThe filtrate was washed with Et2O (3×40 mL)
4. extractionThe basified aqueous layer was extracted with DCM (3×30 mL)
5. dry with materialthe combined organic phases were dried (MgSO4)
6. filtrationfiltered
7. customevaporated in vacuo

ORD-Eintrag

ord-a5b6a50b389b41ba8c191b9f6b54493e

Quelldatensatz

uspto-grants-2016_02

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09266864B2