4-Methylcatechol → HCID 23312060, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([S:9]([OH:11])=[O:10])=[CH:5][CH:4]=1.[CH3:12][C:13]1[CH:14]=[C:15]([OH:20])[C:16]([OH:19])=[CH:17][CH:18]=1>>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([S:9]([C:18]2[CH:17]=[C:16]([OH:19])[C:15]([OH:20])=[CH:14][C:13]=2[CH3:12])(=[O:11])=[O:10])=[CH:7][CH:8]=1Participants
3
Procedure
37.5 g of 4-methoxybenzenesulphinic acid (obtained, for example, by reduction of 4-methoxybenzenesulphonyl chloride with sodium sulphite) are condensed oxidatively with 30.7 g of 4-methyl-1,2-benzenediol in a manner analogous to that described in Example 5a) and, after crystallisation from 1,2-dichloroethane, 4-(4-methoxyphenylsulphonyl)-5-methyl-1,2-benzenediol is obtained in the form of colourless crystals having a melting point of 145°-147.5°.
Workup
- customafter crystallisation from 1,2-dichloroethane
Sources & evidence
- ORD record
- ord-775838bce1f444da94436944edbce22f