Oxalyl chloride → 5-Chloro-3-[(4-chloro-3-trifluoromethyl-benzenesulfonyl)-methoxymethyl-amino]-pyridine-2-carbonyl chloride
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([N:11]([S:15]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[C:20]([C:25]([F:28])([F:27])[F:26])[CH:19]=2)(=[O:17])=[O:16])[CH2:12][O:13][CH3:14])[C:5]([C:8](O)=[O:9])=[N:6][CH:7]=1.C(Cl)(=O)C([Cl:32])=O>C(Cl)Cl.CN(C=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([N:11]([S:15]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[C:20]([C:25]([F:27])([F:26])[F:28])[CH:19]=2)(=[O:16])=[O:17])[CH2:12][O:13][CH3:14])[C:5]([C:8]([Cl:32])=[O:9])=[N:6][CH:7]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 5-chloro-3-[(4-chloro-3-trifluoromethyl-benzenesulfonyl)-methoxymethyl-amino]-pyridine-2-carboxylic acid (450 mg, 1.0 mmol) in 3.0 mL CH2Cl2 and DMF (0.02 mL) was added oxalyl chloride (0.110 mL). The mixture was stirred for 2 h and concentrated to dryness provide 5-chloro-3-[(4-chloro-3-trifluoromethyl-benzenesulfonyl)-methoxymethyl-amino]-pyridine-2-carbonyl chloride.
Workup
- concentrationconcentrated to dryness
Sources & evidence
- ORD record
- ord-8497a65140404729b3dd370d9904c3dc
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08093247B2
Reaction notes
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