Boron tribromide → HCID 67447763, compound

Participants

Reaction Steps

Following General Procedure F, 9-(4-acetylphenyl)-8-methoxythieno[2,3-c]quinolin-4(5H)-one (450 mg, 1.3 mmol) was reacted with tribromoborane (15 mL) to afford the desired product (320 mg, 74%) as a light brown solid: 1H NMR (500 MHz, DMSO-d6) δ 11.82 (s, 1H), 9.38 (s, 1H), 8.10 (d, J=8.3 Hz, 2H), 7.74 (d, J=5.4 Hz, 1H), 7.44-7.39 (m, 3H), 7.18 (d, J=8.9 Hz, 1H), 5.90 (d, J=5.4 Hz, 1H), 2.68 (s, 3H); ESI MS m/z 336 [C19H13NO3S+H]+; HPLC 98.3% (AUC), tR=10.59 min.

Provenance & Evidence