Bromotrimethylsilane → HCID 22237383, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (3,3″-dichloro-5′-{[1-(4-phenylbutoxymethyl)-cyclopropylmethyl]-carbamoyl}-[1,1′;3′1″]terphenyl-2′-yloxy)methyl methyl ether (0.681 g, 1.10 mmol) in CH2Cl2 (15 mL) at −30° C. containing 4 Å molecular sieves was added trimethylsilyl bromide (0.581 mL, 4.40 mmol). After stirring at this temperature for 1 h, it was warmed to 0° C. and stirred an additional 5 h. Only slight conversion to product so warmed to room temperature and stirred at this temperature for 18 h. At this point, the mixture was quenched with sat. aq. NaHCO3 (10 mL) and extracted with EtOAc (250 mL). The organic layer was washed with brine (25 mL) and dried (MgSO4). After concentration, the residue was purified by the Biotage Flash 40 apparatus (10 to 30% EtOAc/petroleum ether gradient) to afford the product (0.455 g, 72%) as a solid; 1H NMR (DMSO-d6) δ 0.32-0.41 (m, 2H), 0.47-0.55 (m, 2H), 1.40-1.62 (m, 4H), 2.46-2.58 (m, 2H), 3.28 (s, 2H), 3.28-3.42 (m, 4H), 7.11-7.20 (m, 3H), 7.20-7.29 (m, 2H), 7.42-7.55 (m, 6H), 7.65 (s, 2H), 7.79 (s, 2H), 8.34 (t, J=6.3 Hz, 1H), 9.19 (s, 1H); mass spectrum [(+) ESI], m/z 574 (M)+.

Provenance & Evidence