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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1164351Generated: November 4, 2026

Formaldehyde → (4-Fluoro-2-methylphenyl)methanol

https://huagongshe.com/reaction/1164351

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantTetrahydrofuranHCID 8028—
Reactant2-Bromo-5-fluorotolueneHCID 96743—
ReactantMagnesiumHCID 5462224—
SolventAcetic AcidHCID 176—
Product(4-Fluoro-2-methylphenyl)methanolHCID 387201747.6%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04369184
Source datasetuspto-grants-1983_01
ORD IDord-e8d4298c7d1240259a3a5c3b87a9d5d5
Source noteuspto-grants-1983_01