Tetrahydrofuran → 3-fluoro-N-(1H-indazol-5-yl)benzenesulfonamide

HRID 25374

Reaction equation

HRID 25374 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][N:6]=[CH:5]2.O1CCCC1.[F:16][C:17]1[CH:18]=[C:19]([S:23](Cl)(=[O:25])=[O:24])[CH:20]=[CH:21][CH:22]=1>C(N(CC)CC)C>[F:16][C:17]1[CH:18]=[C:19]([S:23]([NH:1][C:2]2[CH:3]=[C:4]3[C:8](=[CH:9][CH:10]=2)[NH:7][N:6]=[CH:5]3)(=[O:25])=[O:24])[CH:20]=[CH:21][CH:22]=1

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 880121H-Indazol-5-amineHCID 27342583-Fluorobenzenesulfonyl Chloride

Product 1

HCID 36665693-fluoro-N-(1H-indazol-5-yl)benzenesulfonamideYield 36.6%

Reagents, catalysts & solvents 1

HCID 8471TriethylamineSolvent

Procedure

3-Fluoro-N-(1H-indazol-5-yl)benzenesulfonamide can be obtained as described in Example 1 from 0.4 g of 5-amino-1H-indazole, 20 ml of tetrahydrofuran, 0.83 ml of triethylamine and 0.88 g of 3-fluorobenzenesulfonyl chloride. 0.32 g of 3-fluoro-N-(1H-indazol-5-yl)-benzenesulfonamide is thus obtained in the form of a cream solid.

Sources & evidence

ORD record
ord-a901e0ff14654107949f3e6221c794e7
Source dataset
uspto-grants-2005_02
Patent number
US06858638B2

Linked notes

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