Triethylamine → 1-(3,5-Bis(methoxycarbonyl)phenyl)-2-(1-adamantyl)ethyne

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Next, 125 g of dimethyl 5-bromoisophthalate (458 mmol), 1.1 g of triphenylphosphine (4.19 mmol), 0.275 g of copper iodide (1.44 mmol), 64.26 g of 1-ethynyladamantane (401 mmol), 375 mL of dehydrated triethylamine, 200 mL of dehydrated pyridine, 0.3 g of dichlorobis (triphenylphosphine) palladium (0.427 mmol) and a stirrer were charged in a 1 L recovery flask and agitated at 100° C. for one hour. After reaction solution was filtered, solvent was removed from the reaction solution under reduced pressure. Solid thus obtained was washed with 1 L of ion-exchange water and then with 1 L of 2 mol/L hydrochloric acid aqueous solution, followed by drying under reduced pressure, thus obtaining 121.5 g of 1-(3,5-bis(methoxycarbonyl)phenyl)-2-(1-adamantyl)ethyne (344.9 mmol; yield: 86.0%).

Herkunft & Nachweise