Triethylsilane → HCID 178515018, compound

Participants

Reaction Steps

A stirred solution of 12B (750 mg, 2.086 mmol) in acetonitrile (10 mL) was treated with triethylsilane (0.432 mL, 2.71 mmol) and tribromobismuthine (94 mg, 0.209 mmol), followed by slow addition of cyclopropanecarbaldehyde (175 mg, 2.503 mmol) (dissolved in acetonitrile (0.5 mL)). The reaction mixture was stirred at room temperature overnight. The dark solid was removed by filtration, the filtrate was concentrated, and the residue was purified by ISCO silica column (24 g), gradient elution with ethyl acetate:hexane (0%-100% ethyl acetate over 15 min). Concentration of the desired fractions yielded 12C (630 mg, 2.104 mmol, >quantitative yield) as a white solid. MS (ES): m/z=322 [M+Na]+. 1H NMR (400 MHz, CDCl3) δ ppm 7.56-7.65 (m, 2H); 7.46-7.53 (m, 2H); 3.89-3.99 (m, 1H); 3.13-3.22 (m, 1H); 3.12 (d, 2H, J=6.8 Hz); 2.04-2.16 (m, 2H); 1.92-2.00 (m, 2H); 1.52-1.61 (m, 2H); 1.14-1.27 (m, 2H); 0.80-0.92 (m, 1H); 0.30-0.39 (m, 2H); −0.02-0.05 (m, 2H).

Provenance & Evidence