Potassium Carbonate → Ethyl 2-(2-methoxy-5'-(methoxymethyl)biphenyl-4-yl)acetate

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To a solution of Ethyl 2-(3-methoxy-4-(trifluoromethylsulfonyloxy)phenyl)acetate (example 27d) (2 g, 5.8 mmol) in DME (36 mL) and water (9 mL) was added potassium carbonate (1.61 g, 11.6 mmol) and 3-(methoxymethyl)phenylboronic acid (962 mg, 5.8 mmol) and the mixture was degassed using argon stream for 30 minutes. Pd[PPh3]4 (330 mg, 0.29 mmol) was added and the mixture was heated at 80° C. under argon overnight. The solvents were removed under reduced pressure and the residue extracted with EtOAc, washed with water and brine, dried over MgSO4, filtered and evaporated. The residue was purified on silica gel (20% EtOH/hexanes) to yield 1.38 g (76%) of ethyl 2-(2-methoxy-5′-(methoxymethyl)biphenyl-4-yl)acetate. 1H NMR(400 MHz, dMSO): δ 1.16-1.20 (t, 3H), 3.27 (s, 3H), 3.68 (s, 2H), 3.72 (s, 3H), 4.06-4.11 (q, 2H) 4.41 (s, 2H) 6.89 (d, 1H), 7.00 (s, 1H) 7.19-7.24 (m, 2H), 7.34-7.36 (m, 3H).

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