2-Benzyloxy-4-formyl-benzoic acid methyl ester → Methyl 4-formyl-2-methylbenzoate
Reaction equation
COC(=O)C1C=CC(C=O)=CC=1OCC1C=CC=CC=1.[CH3:21][O:22][C:23](=[O:36])[C:24]1[CH:29]=[CH:28][C:27]([CH:30]=[O:31])=[CH:26][C:25]=1[C:32](F)(F)F.COC(=O)C1C=C(C(F)(F)F)C=C(C=O)C=1>>[CH3:21][O:22][C:23](=[O:36])[C:24]1[CH:29]=[CH:28][C:27]([CH:30]=[O:31])=[CH:26][C:25]=1[CH3:32]Participants
4
Procedure
Preparation 84A: 2-Benzyloxy-4-formyl-benzoic acid methyl ester (384 mg, 86%), LC-ES/MS m/e 293.0 (M+23); Preparation 84B: 4-Formyl-2-trifluoromethyl-benzoic acid methyl ester (1.29 g, 92%), LC-ES/MS m/e 233.3 (M+1); Preparation 84C: 3-Formyl-5-trifluoromethyl-benzoic acid methyl ester (0.5 g, 78%), 1HNMR (CDCl3) (ppm): 3.95 (3H, s), 8.25 (1H, s), 8.5 (1H, s), 8.7 (1H, s), 10.1 (1H, s).
Sources & evidence
- ORD record
- ord-b82cfdb05f9a4011960039d3363d1cef
- Source dataset
- uspto-grants-2010_12
- Patent number
- US07846960B2
Reaction notes
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