Ethyl cyanoacetate → HCID 86752466, compound

Participants

Reaction Steps

A solution of 20 g of ethyl 2-chloro-N-cyanoacetoimidate (20), 16.6 g of ethyl cyanoacetate (21) and 9.28 g of sodium ethoxide in ethanol (350 ml) was stirred at room temperature for 3 hours. After the reaction mixture was distilled, 140 ml of 2N hydrochloric acid were added, followed by stirring under ice cooling for 1 hour. After the reaction mixture was neutralized with a 2N aqueous solution of sodium hydroxide, the resultant mixture was extracted with ethyl acetate. The extract was washed with water, dried over anhydrous magnesium sulfate, and then concentrated underreduced pressure. The residue so obtained was purified by chromatography ona silica gel column while using gradient elution with hexane-ethyl acetate,whereby 5.66 g of the title compound were obtained (yield: 18%).

Provenance & Evidence