Ethyl Acetate → 5-Bromo-7-chloro-2-(4-trifluoromethyl-benzyl)-2,3-dihydro-isoindol-1-one
Reaction equation
CO[C:3](=[O:14])[C:4]1[C:9]([Cl:10])=[CH:8][C:7]([Br:11])=[CH:6][C:5]=1[CH2:12]Br.[F:15][C:16]([F:26])([F:25])[C:17]1[CH:24]=[CH:23][C:20]([CH2:21][NH2:22])=[CH:19][CH:18]=1.C([O-])([O-])=O.[K+].[K+].C(OCC)(=O)C>C1(C)C=CC=CC=1.CCCCCC>[Br:11][C:7]1[CH:6]=[C:5]2[C:4](=[C:9]([Cl:10])[CH:8]=1)[C:3](=[O:14])[N:22]([CH2:21][C:20]1[CH:19]=[CH:18][C:17]([C:16]([F:15])([F:25])[F:26])=[CH:24][CH:23]=1)[CH2:12]2Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 100 °C
Procedure
A mixture of 4-bromo-2-bromomethyl-6-chloro-benzoic acid methyl ester (1.4 g, 4.0 mmol), 4-trifluoromethyl-benzylamine (0.770 mL, 5.4 mmol), and K2CO3 (1.1 g, 8.0 mmol) in toluene (10 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-bromo-7-chloro-2-(4-trifluoromethyl-benzyl)-2,3-dihydro-isoindol-1-one (0.553 g, 35%). 1H NMR (300 MHz, CDCl3): δ (ppm) 4.23 (s, 2H), 4.83 (s, 2H), 7.28-7.64 (m, 6H). GC-MS: m/z 405 (M+1)+, 336 (M−68)+.
Workup
- temperaturewas heated
Sources & evidence
- ORD record
- ord-9d1a3409dc0c43ba852fef8fcf5194fa
- Source dataset
- uspto-grants-2011_06
- Patent number
- US07968570B2
Reaction notes
Loading…