(3-Methoxyphenyl)boronic acid → HCID 135438509, compound

Participants

Reaction Steps

This compound was prepared from 7-bromo-3,9-dihydroxy-6H-chromeno[4,3-b]quinoline (7) using 3-methoxyphenylboronic acid according to method M. Yellow powder; Yield: 87%; mp 155-158° C. (dec.); 1H-NMR (400 MHz, DMSOd-6) δ 3.82 (s, 3H), 4.99 (d, J=14.2 Hz, 1H), 5.04 (d, J=14.2 Hz, 1H), 6.35 (d, J=2.3 Hz, 1H), 6.60 (dd, J=8.6, 2.3 Hz, 1H), 6.71 (d, J=2.7 Hz, 1H), 6.90 (m, 1H), 6.92 (d, J=1.6 Hz, 1H), 7.12 (m, 1H), 7.24 (dd, J=9.1, 2.7 Hz, 1H), 7.52 (dd, J=8.2, 7.9 Hz, 1H), 7.89 (d, J=9.1 Hz, 1H), 8.15 (d, J=8.6 Hz, 1H), 9.80 (s, 1H), 9.96 (s, 1H); MS (ESI) m/z 370 ([M−H]−), 372 ([M+H]+); HRMS (ESI+) calcd for C23H17NO4372.1230 ([M+H]+). Found: 372.1223.

Provenance & Evidence