Chlorosulfonic acid → HCID 20195206, compound
Reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:10][S:9](=[O:12])(=[O:11])[CH:8]=[CH:7][C:6]=2[CH:13]=1.[Cl:14][S:15](O)(=[O:17])=[O:16]>>[Br:1][C:2]1[CH:3]=[C:4]([S:15]([Cl:14])(=[O:17])=[O:16])[C:5]2[O:10][S:9](=[O:11])(=[O:12])[CH:8]=[CH:7][C:6]=2[CH:13]=1Participants
3
Procedure
6.0 g of 6-bromo-2,2-dioxo-1,2-benzoxathiine and 22.0 g of chlorosulfonic acid are heated for 1 hour to 60° C. The mixture is then poured into ice-water. The precipitated 6-bromo-8-chlorosulfonyl-2,2-dioxo-1,2-benzoxathiine is isolated, washed with water and dried.
Sources & evidence
- ORD record
- ord-f99f249ad81c4cb5aa34527ae29caeec
- Source dataset
- uspto-grants-1986_05
- Patent number
- US04589911
Reaction notes
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