Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1766914Generated: November 2, 2026

Hydrochloric Acid → (3-Methyl-1,2-phenylene)dimethanol

https://huagongshe.com/reaction/1766914

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
Reactant7-methyl-2-benzofuran-1(3H)-oneHCID 638757—
ReactantLithium borohydrideHCID 4148881—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product(3-Methyl-1,2-phenylene)dimethanolHCID 2215509719%

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of the 7-methyl-1(3H)-isobenzofuranone obtained above in tetrahydrofuran (80 ml) was cooled to 0° C., and lithium borohydride (1.90 g, 87.2 mmol) was added thereto. The mixture was stirred at 60° C. for 2 hours, then cooled to 0° C., and a 2N aqueous solution of hydrochloric acid (50 ml) was added dropwise. The product was extracted with ethyl acetate, and the solvent was evaporated under reduced pressure to give an oily residue. The residue was subjected to chromatography on a silica gel (75 g) column (eluent; ethyl acetate:hexane=2:1˜1:0) to afford the title compound (4.17 g, 19% total yield from methyl 2,6-dimethylbenzoate) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07230023B2
Source datasetuspto-grants-2007_06
ORD IDord-27b1a56507854675bcbefc3e56b414a1
Source noteuspto-grants-2007_06