Trimethylsilyl cyanide → HCID 118062127, compound

Participants

Reaction Steps

To a solution of Intermediate 334A (300 mg, 1.585 mmol) in DCM (10 mL) at RT was added TMSCN (198 μL, 1.477 mmol) dropwise, followed by Ti(OEt)4 (318 μL, 1.426 mmol). The resulting solution was stirred for 12 h. The reaction was quenched by pouring it into a vigorously stirred saturated aq. solution of NaHCO3 (20 mL). The precipitate was filtered off and the aqueous layer was extracted with EtOAc. The combined organic layers were dried over sodium sulfate, filtered and concentrated. The crude compound was triturated with diethyl ether to afford Intermediate 334B (150 mg, 44% yield) as a pale brown solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 6.48-6.36 (m, 1H), 4.05 (d, J=9.0 Hz, 1H), 3.87 (d, J=8.5 Hz, 3H), 2.49-2.33 (m, 2H), 1.21-1.10 (m, 9H).

Provenance & Evidence