HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phenol → 3,4-Dimethylphenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phenol | HCID 996 | — |
| Reactant | Isobutylene | HCID 8255 | — |
| Reactant | 2,3-Dimethylphenol | HCID 10687 | — |
| Reactant | (1,1'-Biphenyl)-2,2'-diol | HCID 15731 | — |
| Reactant | Potassium chromate(VI) | HCID 24597 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 3,4-Dimethylphenol | HCID 7249 | — |
Reaction Steps
dimethylphenol in two steps. The phenol was alkylated at 65° C. under 2 atmospheres of isobutylene and a catalytic amount of suilfric acid. The crude trialkylphenol was oxidized directly to the biphenol with potassium chromate in hot acetic acid. The overall yield from 3,4-dimethyl phenol was ˜50%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06346652B1 |
| Source dataset | uspto-grants-2002_02 |
| ORD ID | ord-ee0f7d4bad7348fea309f2577d727e41 |
| Source note | uspto-grants-2002_02 |