Triphenylphosphine → HCID 21265833, compound

Participants

Reaction Steps

Triphenylphosphine (10.48 g) was dissolved in tetrahydrofuran (120 ml). To the solution were added diisopropyl azodicarboxylate (8.07 g) at 0° C. The mixture was stirred for 15 minutes at the same temperature. To the mixture were added a solution of 2-(1-methyl-2-imidazolyl)ethanol (2.52 g) in tetrahydrofuran (10 ml) and thiobenzoic acid (4.7 ml) in the order mentioned. The mixture was stirred for 2.5 hours at 0° C. and then for 1 hour at room temperature. The reaction mixture was diluted with ethyl acetate, then washed with saturated solution of sodium hydrogencarbonate in water and saturated solution of sodium chloride in water in the order mentioned. The residue was dried over anhydrous sodium sulfate and concentrated under reduced pressure, which was then subjected to column chloromatography on silica gel (developing solvent: ethyl acetate-methanol: 100:0→93:7) to give the title compound (3.52 g).

Provenance & Evidence