The effect of pressure on the equilibrium in the Diels-Alder reaction between 9-chloroanthracene and tetracyanoethylene

Abstract

Equilibrium constants for the Diels-Alder reaction of 9-chloroanthracene with tetracyanoethylene have been determined in the pressure range 0-970 kg cm^-2 in 1,2-dichloroethane at 298 K and the value of the reaction volume (-20.6 ±1.5 cm³mol^-1) has been compared with the difference in partial molar volume of the dienophile (107.8±0.2), diene (170.7±0.5) and adduct (255.5±1.5 cm³mol^-1).