HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanolamine → Hydroxyethylphthalimide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanolamine | HCID 700 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Product | Hydroxyethylphthalimide | HCID 21422946 | — |
Reaction Steps
888 g (6 mols) of phthalic anhydride are added in portions to 412.5 g of 98% strength ethanolamine (6.6 mols), and the mixture is heated in the course of 2 hours from 110° to 190° C., until 114 g of water have been distilled off. Excess ethanolamine is then removed under reduced pressure down to 145° C./0.1 mbar. The yield is quantitative: 1,145 g.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04511722 |
| Source dataset | uspto-grants-1985_04 |
| ORD ID | ord-29e5c180b5ea421e8a62b93fcfe737c1 |
| Source note | uspto-grants-1985_04 |