HuagongsheHuagongshe Chemistry Print Report · For research reference only
Maleic Anhydride → Dimethylmaleic anhydride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Maleic Anhydride | HCID 7923 | — |
| Reactant | 2-Aminopyridine | HCID 10439 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | Dimethylmaleic anhydride | HCID 13010 | 269.6% |
Reaction Steps
58.0 g (0.5 mol) of maleic anhydride and 4.7 g (0.05 mol) of 2-aminopyridine are boiled under reflux for 48 hours in 200 ml of glacial acetic acid. Working up as in Example 1 affords 17.0 g (54%) of dimethylmaleic anhydride with a melting point of 91°-93° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04639531 |
| Source dataset | uspto-grants-1987_01 |
| ORD ID | ord-3d9a1ca5b43b463895ff39094e5cbe60 |
| Source note | uspto-grants-1987_01 |