Triethylamine → Ethyl4-[4-(1-isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-benzoate

Participants

Reaction Steps

Using General Procedure F; 4-ethynyl-1-(1-isopropoxycyclopropyl)-3-ethyl-benzene (Intermediate 95, 108.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 130.0 mg, 047 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (110 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc-hexanes) afforded 125.0 mg (71%) of the title compound as an oil.

Provenance & Evidence