3-Chloropropanesulphonyl chloride → 4-(1,1-Dioxo-1lambda6-isothiazolidin-2-yl)-3-methoxybenzoic acid
Reaction equation
[NH2:1][C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8]C)=[O:7])=[CH:4][C:3]=1[O:12][CH3:13].Cl[CH2:15][CH2:16][CH2:17][S:18](Cl)(=[O:20])=[O:19]>>[O:19]=[S:18]1(=[O:20])[CH2:17][CH2:16][CH2:15][N:1]1[C:2]1[CH:11]=[CH:10][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[O:12][CH3:13]Participants
3
Procedure
Using methyl 4-amino-3-methoxybenzoate (1.22 g) and 3-chloropropane-1-sulfonyl chloride (1.1 mL) and by the reaction and treatment in the same manner as in Preparation Example 16, the title compound (1.05 g) was obtained.
Workup
- customby the reaction and treatment in the same manner
- customas in Preparation Example 16
Sources & evidence
- ORD record
- ord-40329f47db9f425e872b9c531200acb0
- Source dataset
- uspto-grants-2014_08
- Patent number
- US08816079B2
Reaction notes
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