Properties Ethyl cyanoacetate

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vapour pressure of ethyl cyanoacetate


ethyl cyanoacetate colorless liquid, boils @ atmospheric pressure @ 209 °c. vapor pressure follows antoine equation log10(p) = a−(b/(t+c)) (p in bar, t in k) a = 7.46724, b = 3693.663 , c = 16.138 in temperature range 341 479 k in solid phase, 2 polymorphic forms can occur. below -111 °c, crystal form ii dominant. above temperature, crystal form formed melts @ -22 °c. heat capacity @ 25 °c 220.22 j k mol.


chemical properties

with 3 different reactive centers—nitrile, ester, acidic methylene site—ethyl cyanoacetate versatile synthetic building block variety of functional , pharmacologically active substances. contains acidic methylene group, flanked both nitrile , carbonyl, , can used in condensation reactions knoevenagel condensation or michael addition. reactivity similar of esters of malonic acid. example of reactivity @ nitrile, diethyl malonate obtained cyanoacetic acid ethyl ester reaction ethanol in presence of strong acids. heating in presence of sodium ethoxide forms dimeric 3-amino-2-cyano-2-pentendiaciddiethylester.








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