HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Amino-5-bromo-3-(hydroxymethyl)pyridine hydrobromide → 5-Bromo-3-(bromomethyl)pyridin-2-amine hydrobromide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Amino-5-bromo-3-(hydroxymethyl)pyridine hydrobromide | HCID 44119611 | — |
| Solvent | Hydrogen Bromide | HCID 260 | — |
| Product | 5-Bromo-3-(bromomethyl)pyridin-2-amine hydrobromide | HCID 53420052 | 172.4% |
Reaction Steps
A suspension of 2-amino-5-bromo-3-(hydroxymethyl)pyridine hydrobromide (289 g, 1.02 mole) in 48% aqueous HBr (2.9 L) was heated at reflux for 12 hrs. Complete solution occurred during heating. The reaction mixture was cooled and a crystalline precipitate formed. This was filtered and washed with ethyl acetate and air dried to give the title compound (305 g, 86%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07741339B2 |
| Source dataset | uspto-grants-2010_06 |
| ORD ID | ord-2e662f4c81be498890476a80b9eb7a1f |
| Source note | uspto-grants-2010_06 |