1,1'-Carbonyldiimidazole → HCID 57329938, compound

Participants

Reaction Steps

Synthesized using compound 49a (73.0 mg, 0.36 mmol), CDI (291 mg, 1.80 mmol) and acetonitrile (4 mL) according to Method E. Crude product was purified by flash chromatography on silica-gel using a mixture of hexane/ethyl acetate (1:1) as eluent. Green oil. Yield: 62 mg, 67%. 1H NMR (CDCl3, 500 MHz): δH (ppm)=0.92 (d, J=6.9 Hz, 3H), 1.11 (d, J=6.3 Hz, 3H), 2.25-2.44 (m, 1H), 5.63 (d, J=7.9 Hz, 1H), 6.88 (s, 1H), 7.08 (s, 1H), 7.41-7.58 (m, 3H), 7.66 (dd, J=7.9, 1.9 Hz, 1H), 8.03 (s, 1H), 8.16 (s, 1H), 8.60 (s, 1H); 13C NMR (CDCl3, 125 MHz): δC (ppm)=18.6, 18.8, 33.5, 83.8, 108.7, 117.2, 120.0, 126.8, 131.1, 131.4, 135.4, 137.2, 141.7, 144.2, 148.2, 148.8, 152.5; MS (ESI): m/z=312.32 [M+H]+.

Provenance & Evidence