Triphenylphosphine → HCID 59648600, compound

Participants

Reaction Steps

The title compound was synthesized from 4-bromo-furan-2-carbaldehyde (300 mg, 1.71 mmol) and cyclopropylboronic acid (171 mg, 1.99 mmol), using the conditions to synthesize 4-(4-chlorobenzyl)thiophene-2-carbaldehyde, with the exception that the reaction was run in toluene (7.5 mL) and water (0.5 mL), and triphenylphosphine was replaced with tricyclohexylphosphine (48 mg, 0.17 mmol). Purification by flash chromatography (0-60% EtOAc in heptane) provided 4-cyclopropylfuran-2-carbaldehyde as an orange oil 72 mg (31%). 1H NMR (400 MHz, CDCl3) δ ppm 0.55-0.61 (m, 2H), 0.90-0.97 (m, 2H), 1.69-1.77 (m, 1H), 7.00 (d, J=0.78 Hz, 1H), 7.49 (d, J=0.59 Hz, 1H), 9.58 (d, J=0.49 Hz, 1H).

Provenance & Evidence