FC(F)(F)S(O[C:7]1[CH:12]=[C:11]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:10]([Br:20])=[CH:9][N:8]=1)(=O)=O.[CH2:23]1[O:31][C:30]2[CH:29]=[CH:28][C:27]([Sn](CCCC)(CCCC)CCCC)=[CH:26][C:25]=2[O:24]1.C1(C)C(C)=CC=CC=1>[Cl-].C([N+](CCCC)(CCCC)CCCC)CCC.C(OCC)(=O)C.CCCCCC>[CH2:13]([C:11]1[C:10]([Br:20])=[CH:9][N:8]=[C:7]([C:28]2[CH:27]=[CH:26][C:25]3[O:24][CH2:23][O:31][C:30]=3[CH:29]=2)[CH:12]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1A mixture of 400 mg of 4-benzyl-5-bromo-2-pyridyl trifluoromethanesulfonate, 410 mg of (3,4-methylenedioxyphenyl)tributyltin, 300 mg of tetrabutylammonium chloride, 20 mg of tetrakis(triphenylphsphine)palladium(0) and 2 ml of xylene was stirred under heating for 3 hours in an oil bath kept at 140° C. in a nitrogen atmosphere. The reaction solution was subjected to silica gel column chromatography using 5-10% ethyl acetate/hexane, to give 140 mg of the title compound.
불러오는 중…