Thiophene-3-boronic acid → 2-(3-Fluoro-4-hydroxyphenyl)-4-thiophen-3-yl-quinolin-6-ol

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Reaction Steps

This compound was prepared from 6b using 3-thiopheneboronic acid according to method P. Orange powder; Yield: 95%; mp>160° C. (dec.); 1H-NMR (400 MHz, DMSO-d6) δ 7.06 (t, J=8.8 Hz, 1H), 7.30-7.33 (m, 2H), 7.50 (dd, J=4.9, 1.2 Hz, 1H), 7.82 (dd, J=4.9, 3.0 Hz, 1H), 7.90-7.95 (m, 4H), 8.06 (dd, J=13.0, 2.1 Hz, 1H), 9.97 (s, 1H), 10.19 (s, 1H); MS (ESI) m/z 336 ([M−H]−), 338 ([M+H]+); Anal. Calcd for C19H12FNO2S: C, 67.64; H, 3.59; N, 4.15. Found: C, 66.81; H, 4.14; N, 3.58.

Provenance & Evidence