HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Bromide → 4,4'-Pentane-1,5-diyldiphenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | 1,5-Bis(4-methoxyphenyl)pentane | HCID 13220099 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 4,4'-Pentane-1,5-diyldiphenol | HCID 257838 | 98.5% |
Reaction Steps
A mixture of 1,5-bis(4-methoxyphenyl)pentane of Example 8 (60 g, 0.21 mole), 150 ml of hydrobromic acid (47%) and 200 ml of glacial acetic acid was refluxed for 4.5 hours. It was concentrated to a thick liquid, dissolved in ethyl acetate, washed with water, dried over anhydrous magnesium sulfate and concentrated to give 53.0 g of a thick oil. NMR and TLC confirmed the structure.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04666909 |
| Source dataset | uspto-grants-1987_05 |
| ORD ID | ord-47aedacbc99c477e82b8f1a0d7198eb2 |
| Source note | uspto-grants-1987_05 |