HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethylene Glycol → Bis(2-hydroxyethyl) terephthalate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethylene Glycol | HCID 174 | — |
| Reactant | Dimethyl terephthalate | HCID 8441 | — |
| Reactant | Calcium acetate monohydrate | HCID 82163 | — |
| Catalyst | Cobalt(II) acetate tetrahydrate | HCID 61372 | — |
| Product | Bis(2-hydroxyethyl) terephthalate | HCID 13739 | — |
Reaction Conditions
| Temperature | 160 °C |
|---|
Reaction Steps
1.4 moles of dimethyl terephthalate (277 g) and 7.2 moles of ethylene glycol (445 g) were weighed into a one-liter round-bottomed flask connected to a vacuum line. A catalytic amount of cobalt (II) acetate tetrahydrate (180 mg, 0.5 mole) and calcium acetate hydrate (90 mg, 0.4 mole) were added. The reaction mixture was heated at 160° C. in an oil bath under a mild vacuum.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06419709B1 |
| Source dataset | uspto-grants-2002_07 |
| ORD ID | ord-dd8e6e92df244917b3fba545689f8ce6 |
| Source note | uspto-grants-2002_07 |