Chlorosulfonic acid → HCID 15269533, compound
Reaction equation
[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6](=[O:13])[CH:7]=[CH:8][N:9]2[CH3:12])=[CH:4][CH:3]=1.[Cl:14][S:15](O)(=[O:17])=[O:16]>>[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6](=[O:13])[C:7]([S:15]([Cl:14])(=[O:17])=[O:16])=[CH:8][N:9]2[CH3:12])=[CH:4][CH:3]=1Participants
3
Procedure
7-Chloro-1-methyl-4-quinolone (6.9 g) and chlorosulphonic acid (14 ml) were stirred and heated at 140° for 2 hours. The reaction mixture was cooled to room temperature and carefully added dropwise to ice water (200 ml). The solid which formed was collected, washed with water and dried in air to give the novel compound 7-chloro-1-methyl-4-oxo-1,4-dihydroquinoline-3-sulphonyl chloride, m.p. >300°.
Workup
- temperatureheated at 140° for 2 hours
- customThe solid which formed
- customwas collected
- washwashed with water
- customdried in air
Sources & evidence
- ORD record
- ord-aac7856c234341d49e8b0701e3b18d12
- Source dataset
- uspto-grants-1988_09
- Patent number
- US04772614
Reaction notes
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