Patent ID: 7928268

Claim:
A process for producing a 1,2-dialkoxy-3-fluorobenzene, which comprises producing a 1,2-dialkoxy-3-fluorobenzene (provided that the two alkoxy groups are the same or different alkoxy groups and both are alkoxy groups having 20 or less carbon atoms), using 2-fluorophenol as a starting material, by performing the following steps in the described order: (1) a sulfonation reaction step of introducing a sulfonic acid group into the 4 -position with a sulfonating reagent; (2) a halogenation reaction step of introducing a halogen atom (provided that the halogen atom is a halogen atom other than a fluorine atom) into the 6-position using a halogenating reagent; (3) a step of carrying out an elimination reaction of the sulfonic acid group in an acidic atmosphere to obtain a 2-fluoro-6-halophenol; (4) a hydroxylation reaction step of converting the halogen atom into a hydroxyl group by a hydrolysis reaction or a Grignard reaction to obtain 3-fluorocatechol; and (5) an etherification reaction step of alkyl-etherifying the two hydroxyl groups with an alkylating reagent to obtain a 1,2-dialkoxy-3-fluorobenzene.