4-Cyanophenylboronic acid → HCID 135427962, compound

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Reaction Steps

This compound was prepared from 7-bromo-3,9-dihydroxy-6H-chromeno[4,3-b]quinoline (7) using 4-cyanophenylboronic acid according to method M. Ivory powder; Yield: 96%; mp 295° C. (dec.); 1H-NMR (400 MHz, DMSOd-6) δ 4.99 (s, 2H), 6.36 (d, J=2.3 Hz, 1H), 6.53 (d, J=2.7 Hz, 1H), 6.61 (dd, J=8.7, 2.3 Hz, 1H), 7.27 (dd, J=9.1, 2.6 Hz, 1H), 7.62 (d, J=8.5 Hz, 2H), 7.91 (d, J=9.0 Hz, 2H), 8.09 (d, J=8.3 Hz, 1H), 8.16 (d, J=8.6 Hz, 1H), 9.86 (s, 1H), 9.99 (s, 1H); MS (ESI) m/z 365 ([M−H]−), 367 ([M+H]+); HRMS (ESI+) calcd for C23H14N2O3 367.1077 ([M+H]30 ). Found: 367.1074.

Provenance & Evidence