HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosgene → Terephthaloyl chloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosgene | HCID 6371 | — |
| Reactant | Dimethyl terephthalate | HCID 8441 | — |
| Reactant | Triphenylphosphine Oxide | HCID 13097 | — |
| Reactant | Monomethyl terephthalate chloride | HCID 22493623 | — |
| Product | Terephthaloyl chloride | HCID 7488 | — |
Reaction Steps
A mixture of 150 g of dimethyl terephthalate and 7 g of triphenylphosphine oxide was gassed with phosgene as in Example 1. After 5 hours, the reaction mixture contained only 1.3% of dimethyl terephthalate and 1.3% of methyl terephthalate chloride. After 6-7 hours, the conversion was complete and terephthalic acid dichloride was obtained (>99% pure).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04764310 |
| Source dataset | uspto-grants-1988_08 |
| ORD ID | ord-de778bd5a94840fab6944b517c1fb071 |
| Source note | uspto-grants-1988_08 |