HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine Sulfate → 4,5-Dichloro-3-hydroxypyridazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine Sulfate | HCID 24842 | — |
| Reactant | Sodium Acetate | HCID 517045 | — |
| Reactant | Mucochloric Acid | HCID 2771871 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4,5-Dichloro-3-hydroxypyridazine | HCID 73247 | 78.8% |
Reaction Steps
A stirred solution of 3.9 grams of mucochloric acid in water is warmed to 8°-100° C., and a mixture of 3.1 grams of hydrazine sulfate and 3.0 grams of sodium acetate is added. A solid is collected by filtration and recrystallized from water to yield 3.0 grams of 4,5-dichloro-3-pyridazone; m.p. 199°-200° C. The reaction is repeated several times.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04728355 |
| Source dataset | uspto-grants-1988_03 |
| ORD ID | ord-f4f8f537176043aabdaf384bca67c5bd |
| Source note | uspto-grants-1988_03 |