Hydrochloric Acid → 3-(Aminomethyl)-4-ethyl-6-methylpyridin-2(1H)-one hydrochloride

3-(Amino methyl)-4-ethyl-6-methylpyridin-2(1H)-one, (5.6 g, 33 mmol) was suspended in DCM (560 mL) and the insoluble contents/particles were filtered. The filtrate was concentrated and dried. The residue was dissolved in DCM (10 mL) and 4 M HCl in 1,4-dioxane (16 mL, 66 mmol) was added at 0° C. and stirred for 10 min, at which time the reaction mixture was concentrated under high-vacuum and dried. The resulting crude solid was triturated with hexane (150 mL) and filtered. The solid was dried under vacuum. Collected 3-(amino methyl)-4-ethyl-6-methylpyridin-2(1H)-one hydrochloride (5.9 g, 86%).

1. filtrationthe insoluble contents/particles were filtered
2. concentrationThe filtrate was concentrated
3. customdried
4. dissolutionThe residue was dissolved in DCM (10 mL)
5. concentrationwas concentrated under high-vacuum
6. customdried
7. customThe resulting crude solid was triturated with hexane (150 mL)
8. filtrationfiltered
9. customThe solid was dried under vacuum

ORD record

ord-a58aa3c2b2bd4e32b6e5bf48f247e017

Source dataset

uspto-grants-2013_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08536179B2