Acrylamide → US9321721, Example 6
反応式
[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].[F:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:15])[F:14])=[CH:9][C:8]=1[NH:17][C:18]([NH:20][C:21]1[CH:26]=[CH:25][C:24](I)=[CH:23][CH:22]=1)=[O:19]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:15])[F:14])=[CH:9][C:8]=1[NH:17][C:18]([NH:20][C:21]1[CH:26]=[CH:25][C:24](/[CH:3]=[CH:2]/[C:1]([NH2:5])=[O:4])=[CH:23][CH:22]=1)=[O:19]参加物
4
実験手順
A mixture of acrylamide (6.2 mg, 0.087 mmol), 1-[2-fluoro-5-(trifluoromethyl)phenyl]-3-(4-iodophenyl)urea (9.2 mg, 0.022 mmol), and palladium(II) acetate (1.9 mg, 0.0087 mmol) in 0.6 mL degassed DMF:triethylamine (1:1) was reacted at 90° C. After 2.5 hours, the heating was stopped and the reaction stored at rt for 3 days in the dark. Then a catalytic amount of palladium(II) acetate was added and the heating resumed at 90° C. for 7.5 hours, then the temperature lowered to 65° C. for 16 hours. The reaction was partitioned between EtOAc and H2O/brine mixture. The EtOAc layer was washed with dilute aqueous HCl, then aqueous NaHCO3, brine, dried with anhydrous Na2SO4 and evaporated. The resulting solid was chromatographed eluting with CHCl3/MeOH and then triturated with a CHCl3 plus 40% EtOAc/hexane mixture to give the title compound as a light tan solid (3.9 mg, 49%). 1H NMR (Acetone-d6) δ: 8.76-8.83 (m, 2H), 8.40 (d, J=2.6 Hz, 1H), 7.58-7.63 (m, 2H), 7.37-7.57 (m, 5H), 6.91 (br. s, 1H), 6.63 (d, J=15.8 Hz, 1H), 6.32 (br. s, 1H)