HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 66603128, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1,2-Dimethylhydrazine dihydrochloride | HCID 9380 | — |
| Reactant | 4-Bromophthalic anhydride | HCID 66590 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 66603128 | HCID 66603128 | 43.5% |
Reaction Steps
A suspension of 4-bromophthalic anhydride (1.0 g) in EtOH (10 mL) was treated with 1,2,-dimethylhydrazine dihydrochloride (650 mg) and NEt3 (1.35 mL) and heated at reflux during 16 h. The reaction mixture was cooled and diluted into 0.1M HCl (100 mL). The resμLting white solid was collected by filtration, washed with water, and dried in vacuo to give 6-bromo-2,3-dimethyl-2,3-dihydrophthalazine-1,4-dione (516 mg), m.p. 207-209.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07851637B2 |
| Source dataset | uspto-grants-2010_12 |
| ORD ID | ord-e777fd22a7704de4a92951f5b0ebd005 |
| Source note | uspto-grants-2010_12 |