Methyl 3-(1H-pyrazol-1-yl)benzoate → 3-Oxo-3-(3-pyrazol-1-yl-phenyl)-propionic acid tert-butyl ester
Reaction equation
CO[C:3](=[O:15])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([N:10]2[CH:14]=[CH:13][CH:12]=[N:11]2)[CH:5]=1.[C:16]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])(=[O:18])[CH3:17].[Li]>>[C:20]([O:19][C:16](=[O:18])[CH2:17][C:3](=[O:15])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([N:10]2[CH:14]=[CH:13][CH:12]=[N:11]2)[CH:5]=1)([CH3:23])([CH3:22])[CH3:21]Participants
3
Procedure
The title compound was prepared from 3-pyrazol-1-yl-benzoic acid methyl ester [CAS-No. 168618-35-7] by treatment with lithium tert.-butyl acetate according to general procedure K (method b). Obtained as a yellow oil (5.00 g).
Sources & evidence
- ORD record
- ord-60cd1c5067af4c9b9444f9a48dc51699
- Source dataset
- uspto-grants-2003_04
- Patent number
- US06544985B2
Reaction notes
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