Triethylamine → (4-Cyano-5-methyl-4-(3-cyano-2-thienyl)hexyl]-4-[2-(3-cyanophenoxy)ethyl]piperazine

Participants

Reaction Steps

In 1.5 ml of acetonitrile was dissolved 111 mg (0.31 mmol) of 4-cyano-5-methyl-4-(3-cyano-2-thienyl)hexyl iodide. To the mixture were added 56.2 μl (0.40 mmol) of triethylamine and 109 mg (0.47 mmol) of 1-(3-cyanophenoxyethyl)piperazine, followed by stirring for 3 days. The organic layer separated by adding ethyl acetate and brine to the reaction solution was dried over magnesium sulfate, and then evaporated, to give a crude product. The crude product was subjected to 12.5 g of Cromatorex NH silica gel (ethyl acetate/hexane-1/2), to give 144 mg (quantitative) of the title compound as a yellow syrup.

Provenance & Evidence