HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → (4-Fluoro-2-methylphenyl)methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | 2-Bromo-5-fluorotoluene | HCID 96743 | — |
| Reactant | Magnesium | HCID 5462224 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | (4-Fluoro-2-methylphenyl)methanol | HCID 3872017 | 47.6% |
Reaction Steps
To a stirred and refluxing Grignard-complex, previously prepared starting from 39.7 parts of 1-bromo-4-fluoro-2-methylbenzene and 5.1 parts of magnesium in 225 parts of tetrahydrofuran, are added portionwise 8.4 parts of paraformaldehyde. Upon completion, stirring is continued for 1 hour at reflux. The reaction mixture is cooled and poured onto a mixture of crushed ice and acetic acid. The product is extracted with trichloromethane. The extract is dried, filtered and evaporated. The residue is distilled, yielding 14 parts (47.6%) of 4-fluoro-2-methylbenzenemethanol; bp. 110° C. (water-jet).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04369184 |
| Source dataset | uspto-grants-1983_01 |
| ORD ID | ord-e8d4298c7d1240259a3a5c3b87a9d5d5 |
| Source note | uspto-grants-1983_01 |