2,5-Dichlorobenzenesulfonyl chloride → HCID 18617351, compound
Reaction equation
[NH2:1][C:2]1[O:6][N:5]=[C:4]([CH3:7])[C:3]=1[Br:8].[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][C:11]=1[S:17](Cl)(=[O:19])=[O:18]>>[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][C:11]=1[S:17]([NH:1][C:2]1[O:6][N:5]=[C:4]([CH3:7])[C:3]=1[Br:8])(=[O:19])=[O:18]Participants
3
Procedure
2,5-Dichloro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide was prepared from 5-amino-4-bromo-3-methylisoxazole and 2,5-dichlorobenzenesulfonyl chloride according to the procedures described in Example 25b. The crude product was purified by recrystallization from ethyl acetate/hexanes to give a yellow powder, m.p. 148-150° C., yield 53%.
Workup
- customThe crude product was purified by recrystallization from ethyl acetate/hexanes
- customto give a yellow powder, m.p. 148-150° C., yield 53%
Sources & evidence
- ORD record
- ord-5a35235bc03c4cc88082f92a74742e3c
- Source dataset
- uspto-grants-2000_02
- Patent number
- US06030991
Reaction notes
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