HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine hydrate (1:1) → 6-Bromo-1,4-phthalazinedione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | 4-Bromophthalic anhydride | HCID 66590 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 6-Bromo-1,4-phthalazinedione | HCID 22744616 | — |
Reaction Steps
96.9 ml hydrazine monohydrate was added to a mixture of 20 g 4-bromophthalic anhydride and 400 ml ethanol, and the mixture was heated under reflex for 8 hr. After cooling, the resulting precipitates were collected by filtration to give 28 g of 6-bromo-1,4-phthalazinedione.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06498159B1 |
| Source dataset | uspto-grants-2002_12 |
| ORD ID | ord-28d9f33748994dae941cf5c919fbeee5 |
| Source note | uspto-grants-2002_12 |