3-Nitrobenzenesulfonyl chloride → HCID 18617395, compound
Reaction equation
[NH2:1][C:2]1[O:6][N:5]=[C:4]([CH3:7])[C:3]=1[Br:8].[N+:9]([C:12]1[CH:13]=[C:14]([S:18](Cl)(=[O:20])=[O:19])[CH:15]=[CH:16][CH:17]=1)([O-:11])=[O:10]>>[N+:9]([C:12]1[CH:13]=[C:14]([S:18]([NH:1][C:2]2[O:6][N:5]=[C:4]([CH3:7])[C:3]=2[Br:8])(=[O:20])=[O:19])[CH:15]=[CH:16][CH:17]=1)([O-:11])=[O:10]Participants
3
Procedure
3-Nitro-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide was prepared in the same manner as described in Example 30 from 5-amino-4-bromo-3-methylisoxazole and 3-nitrobenzenesulfonyl chloride in 55% yield. Purification was achieved by recrystallization from ethyl acetate/hexanes to give a crystalline solid, m.p. 151-153° C.
Workup
- customPurification
- customwas achieved by recrystallization from ethyl acetate/hexanes
- customto give a crystalline solid, m.p. 151-153° C.
Sources & evidence
- ORD record
- ord-ef36e30553ef4b88b37fbfc479ab44c9
- Source dataset
- uspto-grants-2000_02
- Patent number
- US06030991
Reaction notes
Loading…