Ethyl Acetate → 5-Fluoro-2-(4-trifluoromethyl-benzyl)-7-trifluoromethyl-2,3-dihydro-isoindol-1-one
Reaction equation
CO[C:3](=[O:17])[C:4]1[C:9]([C:10]([F:13])([F:12])[F:11])=[CH:8][C:7]([F:14])=[CH:6][C:5]=1[CH2:15]Br.[F:18][C:19]([F:29])([F:28])[C:20]1[CH:27]=[CH:26][C:23]([CH2:24][NH2:25])=[CH:22][CH:21]=1.C([O-])([O-])=O.[K+].[K+].C(OCC)(=O)C>C1(C)C=CC=CC=1.CCCCCC>[F:14][C:7]1[CH:6]=[C:5]2[C:4](=[C:9]([C:10]([F:11])([F:12])[F:13])[CH:8]=1)[C:3](=[O:17])[N:25]([CH2:24][C:23]1[CH:22]=[CH:21][C:20]([C:19]([F:18])([F:28])[F:29])=[CH:27][CH:26]=1)[CH2:15]2Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 100 °C
Procedure
A mixture of 4-fluoro-2-bromomethyl-6-trifluoromethyl-benzoic acid methyl ester (0.100 g, 0.32 mmol), 4-trifluoromethyl-benzylamine (0.06 mL, 0.42 mmol), and K2CO3 (0.088 g, 0.64 mmol) in toluene (4 mL) was heated with stirring at 100° C. for 2 h. Workup and silica gel column chromatography using 30% ethyl acetate in hexane afforded 5-fluoro-2-(4-trifluoromethyl-benzyl)-7-trifluoromethyl-2,3-dihydro-isoindol-1-one (0.39 g, 33%). 1H NMR (300 MHz, CDCl3): δ (ppm) 4.34 (s, 2H), 4.84 (s, 2H) 7.20-7.50 (m, 6H). GC-MS: m/z 377 (M)+, 356 (M−21)+.
Workup
- temperaturewas heated
Sources & evidence
- ORD record
- ord-b0a023b2eeae4bf180d348956841dab8
- Source dataset
- uspto-grants-2011_06
- Patent number
- US07968570B2
Reaction notes
Loading…