Tris(furan-2-yl)phosphane → HCID 58044954, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-(4-bromophenyl)-3-(4-methoxyphenyl)-4-phenyl-4,5-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (0.138 g, 0.3 mmol), oxadiazol-2-yl tributyltin (0.134 g, 0.37 mmol), tris(2-furyl)phosphine (0.014 g, 0.06 mmol), tris(dibenzylideneacetone)dipalladium(0) (0.027 g, 0.03 mmol) and dioxane (1.5 mL) was stirred at 130° C. under microwave radiation for 75 min. The reaction mixture was purified by silica gel column chromatography (ethyl acetate/n-hexane). The fraction was concentrated under reduced pressure and the precipitate was collected by filtration to give 3-(4-methoxyphenyl)-5-(4-oxazol-2-ylphenyl)-4-phenyl-4,5-dihydro-1H-pyrrolo[3,4-c]pyrazol-6-one (12 mg, 10%) as colorless crystals.

Provenance & Evidence