Bicarbonate Ion → Benzenamine, 2-bromo-4-(4-morpholinyl)-6-(trifluoromethyl)-
Reaction equation
[Br:1][C:2]1[CH:7]=[C:6]([NH2:8])[CH:5]=[C:4]([C:9]([F:12])([F:11])[F:10])[C:3]=1[NH2:13].Br[CH2:15][CH2:16][O:17][CH2:18][CH2:19]Br.C(N(CC)C(C)C)(C)C.C(=O)(O)[O-]>CN(C)C=O>[Br:1][C:2]1[CH:7]=[C:6]([N:8]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)[CH:5]=[C:4]([C:9]([F:12])([F:11])[F:10])[C:3]=1[NH2:13]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 180 °C
Procedure
2-Bromo-6-trifluoromethyl-benzene-1,4-diamine (2.21 g), bis-(2-bromoethyl)ether (1.30 mL) and N,N-diisopropyl-ethylamine (4.64 mL) were mixed in N,N-dimethylformamide (19 mL) and heated to 180° C. for 30 minutes in a sealed microwave process vial. Saturated aqueous bicarbonate (100 mL) was added and the crude mixture was extracted with ethyl acetate (100 mL). The organic phase was washed with water (100 mL) and brine (100 mL), dried over sodium sulfate and concentrated in vacuo. The crude product was purified by flash chromatography to furnish 1.78 g (63%) of the title compound as a yellow solid. LC-MS (m/z) 326 (MH+); tR=2.54, (UV, ELSD) 83%, 75%. 1H NMR (500 MHz, DMSO-d6): 2.99 (m, 4H), 3.70 (m, 4H), 5.00 (s, 2H), 7.00 (d, 1H), 7.38 (d, 1H).
Workup
- extractionthe crude mixture was extracted with ethyl acetate (100 mL)
- washThe organic phase was washed with water (100 mL) and brine (100 mL)
- dry with materialdried over sodium sulfate
- concentrationconcentrated in vacuo
- customThe crude product was purified by flash chromatography
Sources & evidence
- ORD record
- ord-acc0979c7379437ca4de41ba52812ed9
- Source dataset
- uspto-grants-2011_09
- Patent number
- US08012962B2
Reaction notes
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