Hydrochloric Acid → 2-Chloro-3-methoxyphenol

Temperature

100 °C

To an aqueous solution (100 mL) of potassium hydroxide (11.0 g) was added 2-chlorobenzene-1,3-diol (22.8 g). Then, dimethyl sulfate (19.9 g) was slowly added to the reaction mixture while keeping the reaction mixture at 10° C. to 20° C., and the mixture was stirred at 100° C. for 2 days. The reaction mixture was acidified with 2N hydrochloric acid, and the mixture was extracted with dichloromethane. The organic layer was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/petroleum ether) to give the title compound (18.0 g).

1. customat 10° C. to 20° C.
2. extractionthe mixture was extracted with dichloromethane
3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
4. customthe solvent was evaporated under reduced pressure
5. customThe residue was purified by silica gel column chromatography (ethyl acetate/petroleum ether)

ORD record

ord-60c19c208b704da8ac733c8b083c62bd

Source dataset

uspto-grants-2016_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09315458B2