Diethyl Sulfate → HCID 14150485, compound

Participants

Reaction Conditions

Reaction Steps

210 g (1 mol) of 1,4-dihydroxy-2,3-dicyanonaphthalene, 1 l of DMF and 339 g (2.2 mol) of diethyl sulfate were introduced at room temperature as the initial charge. 304 g (2.2 mol) of potassium carbonate were added with care. The batch was gradually heated to 100° C. and stirred at 100° C. for 6 h. It was then poured onto water and the resulting precipitate was washed with water and dried to leave 231 g of 1,4-diethoxy-2,3-dicyanonaphthalene (theory: 87% ; melting point: 167°-169° C.).

Provenance & Evidence