反应详情

A solution of (5-trifluoromethanesulfonyloxy-4′-trifluoromethyl-biphenyl-3-yl)-acetic acid ethyl ester (100 mg, 0.2 mmol), 4-chlorophenyl boronic acid (41 mg, 0.24 mmol), K2CO3 (2 M solution in H2O, 220 μL, 0.4 mmol) in DME (2.0 mL) was heated to 80° C. in the presence of bis(tri-t-Butylphosphine) palladium (0) (cat) for 2 hrs. The mixture was cooled to room temperature filtered, diluted with EtOAc, washed with Na2CO3, dil HCl, brine, dried (MgSO4) and evaporated under reduced pressure to give an off white solid. The residue was purified by flash column chromatography (EtOAc:petroleum ether), 1H NMR (CDCl3) δ 7.71 (s, 4H), 7.65-7.68 (m, 1H), 7.42 (d, 2H), 7.52-7.48 (m, 2H), 7.36 (d, 2H), 3.77 (s, 2H), 3.74 (s, 3H)

1. filtrationfiltered
2. additiondiluted with EtOAc
3. washwashed with Na2CO3, dil HCl, brine
4. dry with materialdried (MgSO4)
5. customevaporated under reduced pressure
6. customto give an off white solid
7. customThe residue was purified by flash column chromatography (EtOAc:petroleum ether), 1H NMR (CDCl3) δ 7.71 (s, 4H), 7.65-7.68 (m, 1H), 7.42 (d, 2H), 7.52-7.48 (m, 2H), 7.36 (d, 2H), 3.77 (s, 2H), 3.74 (s, 3H)