2-Chloro-6-fluorobenzoic acid → 4-(2-Chloro-6-fluorobenzamido)-1H-pyrazole-5-carboxylic acid
Reaction equation
[F:1][C:2]1[CH:18]=[CH:17][CH:16]=[C:15](F)[C:3]=1[C:4]([NH:6][C:7]1[C:8]([C:12]([OH:14])=[O:13])=[N:9][NH:10][CH:11]=1)=[O:5].[Cl:20]C1C=CC=C(F)C=1C(O)=O>>[Cl:20][C:15]1[CH:16]=[CH:17][CH:18]=[C:2]([F:1])[C:3]=1[C:4]([NH:6][C:7]1[C:8]([C:12]([OH:14])=[O:13])=[N:9][NH:10][CH:11]=1)=[O:5]Participants
3
Procedure
The compound was prepared in a manner analogous to 4-(2,6-difluoro-benzoylamino)-1H-pyrazole-3-carboxylic acid (Example 16D), but using 2-chloro-6-fluorobenzoic acid as the starting acid to give 4-(2-chloro-6-fluoro-benzoylamino)-1H-pyrazole-3-carboxylic acid (4.42 g) as a pale blue solid. (LC/MS: Rt 2.35, [M+H]+ 283.94).
Sources & evidence
- ORD record
- ord-541d7ec6fa8e4512a1d2b109e7b0dc0a
- Source dataset
- uspto-grants-2011_07
- Patent number
- US07977477B2
Reaction notes
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