1-Pentyne → {2-Chloro-4-[3-(3-morpholin-4-yl-propoxy)-5-pent-1-ynyl-phenylsulfanyl]-phenoxy}-acetic Acid Ethyl Ester

Beteiligte Stoffe

Reaktionsschritte

{4-[3-Bromo-5-(3-morpholin-4-yl-propoxy)-phenylsulfanyl]-2-chloro-phenoxy}-acetic acid ethyl ester (0.2 g; 0.37 mmol), 1-pentyne (0.10 g; 1.47 mmol), bis(triphenylphosphine)palladium (II) chloride (21 mg; 0.029 mmol) and copper iodide (4.2 mg; 0.022 mmol) were dissolved in a mixture of triethylamine (2 mL) and DMF (2 mL) under an atmosphere of nitrogen. The reaction mixture was reacted in a microwave oven at 150° C. for 1 h. The reaction mixture was evaporated to dryness and extracted with ethyl acetate from a aqueous 5% citric acid solution. The crude product was dried, evaporated to dryness and purified by preparative HPLC (method B). Yield: 120 mg. HPLC-MS: m/z: 532.0 (M+); Rt: 2.02 mm.

Herkunft & Nachweise