5'-fluoro-N-methyl-2'-methylsulphonylacetylformanilide → Flosequinoxan
Reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:12](=[O:18])[CH2:13][S:14]([CH3:17])(=[O:16])=[O:15])=[C:6]([CH:11]=1)[N:7]([CH3:10])[CH:8]=O>[OH-].[Na+]>[F:1][C:2]1[CH:11]=[C:6]2[C:5]([C:12](=[O:18])[C:13]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:8][N:7]2[CH3:10])=[CH:4][CH:3]=1Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 5'-fluoro-N-methyl-2'-methylsulphonylacetylformanilide (1.50 g), prepared in a similar manner to that described in Example 11, and aqueous sodium hydroxide solution (1M; 40 ml) was stirred for 2 hours. The mixture was filtered, the solid washed with water (2×10 ml) and then dried in vacuo to give 7-fluoro-1-methyl-3-methylsulphonyl-4-quinolone, m.p. 234°-235° (1.19 g).
Workup
- customprepared in a similar manner to that
- filtrationThe mixture was filtered
- washthe solid washed with water (2×10 ml)