(4-Methoxyphenyl)boronic acid → 8-Chloro-2-(3-fluoro-4-hydroxyphenyl)-4-(4-methoxyphenyl)quinolin-6-ol

Participants

Reaction Steps

This compound was prepared from 45a using 4-methoxyphenylboronic acid according to method P. Orange solid; Yield: 97%; mp 140-142° C.; 1H-NMR (400 MHz, DMSO-d6) δ 3.87 (s, 3H), 7.09 (dd, J=8.8, 8.8 Hz, 1H), 7.11 (d, J=2.7 Hz, 1H), 7.16 (d, J=8.8 Hz, 2H), 7.51 (d, J=2.6 Hz, 1H), 7.53 (d, J=8.8 Hz, 2H), 7.93 (s, 1H), 8.02 (dd, J=8.5, 1.7 Hz, 1H), 8.14 (dd, J=13.1, 2.1 Hz, 1H), 10.21 (s, 1H), 10.27 (s, 1H); 19F-NMR (400 MHz, DMSO-d6) δ −136.48 (dd, J=13.0, 9.7 Hz); MS (ESI) m/z 394/396 ([M−H]−), 396/398 ([M+H]+); Anal. Calcd for C22H15ClFNO3: C, 66.76; H, 3.82; N, 3.54. Found: C, 66.05; H, 4.01; N, 3.19.

Provenance & Evidence