HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → 6-Chloro-3-oxo-2,3-dihydropyridazine-4-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 3,6-Dichloropyridazine-4-carboxylic acid | HCID 433804 | — |
| Solvent | Water | HCID 962 | — |
| Product | 6-Chloro-3-oxo-2,3-dihydropyridazine-4-carboxylic acid | HCID 334015 | — |
Reaction Steps
27 g of 3,6-dichloro-pyridazine-4-carboxylic acid were stirred at 50° C. for 6 h in a. 1:1 mixture of concentrated sulphuric acid and water. The pure product crystallized after cooling off the reaction mixture and was filtered.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07462613B2 |
| Source dataset | uspto-grants-2008_12 |
| ORD ID | ord-583302761fd24d96affe4d1266f0b4fd |
| Source note | uspto-grants-2008_12 |