Dimethyl Sulfoxide → HCID 18615635, compound
Reaction equation
[Cl:1][C:2]1[C:3]([O:21][CH3:22])=[C:4]([C:6]([N:10]2C(=O)C3=CC=CC=C3C2=O)=[C:7]([F:9])[CH:8]=1)[NH2:5].NN.[OH2:25].CS(C)=[O:28]>>[Cl:1][C:2]1[CH:8]=[C:7]([F:9])[C:6]([NH2:10])=[C:4]([N+:5]([O-:28])=[O:25])[C:3]=1[O:21][CH3:22]Participants
5
Procedure
3-Chloro-5-fluoro-2-methoxy-6-(phthalimido)aniline (0.6 g, 1.7 mmol) was dissolved in dimethylsulfoxide (3 ml) and anhydrous hydrazine (0.22 g, 6.8 mmol) was added. The solution was stirred at ambient temperature for 12 hr under a stream of nitrogen. Water was added and the product extracted with ether. The organic layer was washed with water, dried (anhydrous sodium sulfate), and evaporated to furnish the title compound (0.22 g). 1H NMR (CDCl3, 300 MHz) 3.98 (3H, s), 5.09 (2H, br s), 7.2 (1H, d, J=10.5 Hz) ppm.
Workup
- extractionthe product extracted with ether
- washThe organic layer was washed with water
- dry with materialdried (anhydrous sodium sulfate)
- customevaporated
Sources & evidence
- ORD record
- ord-7fd3a40a7bac4394a41f79498919e1cd
- Source dataset
- uspto-grants-2003_04
- Patent number
- US06545161B2
Reaction notes
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