Sodium Hydroxide → HCID 69117392, compound
Reaction equation
[F:1][C:2]1([CH3:16])[CH:11]=[C:10]([S:12]([CH3:15])(=[O:14])=[O:13])[CH:9]=[CH:8][CH:3]1[C:4]([O:6]C)=[O:5].[OH-].[Na+]>C1COCC1.O>[F:1][C:2]1([CH3:16])[CH:11]=[C:10]([S:12]([CH3:15])(=[O:14])=[O:13])[CH:9]=[CH:8][CH:3]1[C:4]([OH:6])=[O:5]Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
53.8 g of crude methyl 2-fluoro-2-methyl-4-(methylsulfonyl)benzoate were initially charged in 500 ml of THF, and 10.5 g NaOH dissolved in 500 ml of H2O were added. The mixture was stirred at RT for 3 h, and most of the THF was then removed under reduced pressure. The residue was washed with diethyl ether and the aqueous phase was then acidified with 10% strength H2SO4. The precipitated crystals were filtered off with suction, washed with cold water and dried. This gave colorless crystals.
Workup
- additionwere added
- custommost of the THF was then removed under reduced pressure
- washThe residue was washed with diethyl ether
- filtrationThe precipitated crystals were filtered off with suction
- washwashed with cold water
- customdried
Sources & evidence
- ORD record
- ord-7d11387b0f9f48d3a2c5ea4bbcb5f27f
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07396939B2
Reaction notes
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