HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → Ethanol hydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 59620398 | HCID 59620398 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Ethanol hydrochloride | HCID 21887872 | — |
| Product | 3-amino-6-bromo-8-nitro-3,4-dihydroquinolin-2(1H)-one hydrochloride | HCID 68411311 | — |
Reaction Steps
Aqueous hydrochloric acid-ethanol solution was prepared (from commercial aqueous concentrated hydrochloric acid (3 L) and ethanol (6 L)), and N-(6-bromo-8-nitro-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl)acetamide (known compound: Chem. Abst., 4150 (1947)) (604 g) was added to the solution, followed by heating for 14 hours under stirring and reflux. The reaction mixture was cooled on an ice bath, and the precipitates were recovered through filtration. The thus-obtained solid was washed with ethanol and dried, whereby the title compound (571 g) was yielded as a powdery compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08299255B2 |
| Source dataset | uspto-grants-2012_10 |
| ORD ID | ord-07bf1c12c6c1423da8740b2bdc360a4b |
| Source note | uspto-grants-2012_10 |