HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydroquinone → 4-hydroxyphenyl 4-methoxybenzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydroquinone | HCID 785 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 4-Methoxybenzoic Acid | HCID 7478 | — |
| Reactant | Boric Acid | HCID 7628 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-hydroxyphenyl 4-methoxybenzoate | HCID 4079634 | — |
Reaction Steps
912 g p-methoxybenzoic acid and 660 g hydroquinone are heated under reflux in the presence of 12 g boric acid and 9 ml sulfuric acid (98%) until the elimination of water is over. After cooling, the crystals precipitating are filtered under suction, washed and redried. Yield 1250 g colorless crystals. Melting point: 162°-165° C. Mp. J. Org. Chem. 37, 1425 (1972) 156° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05089590 |
| Source dataset | uspto-grants-1992_02 |
| ORD ID | ord-ac430afded9c48adb4ee1fa368f92dfd |
| Source note | uspto-grants-1992_02 |