HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 21441250, compound → HCID 54431240, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 21441250 | HCID 21441250 | — |
| Solvent | Acetic Anhydride | HCID 7918 | — |
| Product | HCID 54431240 | HCID 54431240 | — |
Reaction Steps
The crude phthalic acid prepared above is heated in 150 ml acetic anhydride for two hours. The solvent is removed under reduced pressure and the crystalline residue collected and washed with ether. The anhydride may be recrystallized from nitromethane to give an analytical sample m.p. 200°-203°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03940419 |
| Source dataset | uspto-grants-1976_02 |
| ORD ID | ord-d139e19ea1b348ab8b6ff06bf4c9ade1 |
| Source note | uspto-grants-1976_02 |