4-Chlorophenylboronic acid → 2-(4-Chloro-4''-trifluoromethyl-[1,1';3',1'']terphenyl-5'-yl)-4-methyl-pentanoic acid

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The title compound was prepared from a Suzuki coupling of 4-Methyl-2-(5-trifluoromethanesulfonyloxy-4′-trifluoromethyl-biphenyl-3-yl)-pentanoic acid ethyl ester (intermediate Example 1g) with 4-chlorophenylboronic acid under the conditions described in Example 1; 1H NMR (400 MHz, MeOD) δ ppm 0.87 (dd, J=6.60, 3.18 Hz, 6H), 1.41-1.51 (m, 1H), 1.65 (ddd, J=13.69, 7.21, 6.97 Hz, 1H), 1.95 (ddd, J=13.57, 7.70, 7.58 Hz, 1H), 3.74 (t, J=7.83 Hz, 1H), 7.33-7.40 (m, 2H), 7.50-7.59 (m, 4H), 7.65 (s, 1H), 7.67 (d, J=1.47 Hz, 2H), 7.75 (d, J=8.31 Hz, 2H); Calcd for C25H22ClF3O2 (M+H) 447.13, Found 447.

Provenance & Evidence