The kinetic parameters and enthalpies of the Diels–Alder reactions between cyclopentadiene and 2,3‐dicyano‐1,4‐benzoquinone leading to the formation of two different monoadducts and bisadduct were determined. The stability of adducts is compared. Monoadduct appears to be thermodynamically more stable than the bisadduct. Comparison with the other Diels–Alder reactions studied previously allows us to conclude that the heat effects upon formation of the considered Diels–Alder adducts are the lowest in comparison with all the studied dienophiles.

中文翻译：

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研究环戊二烯与2,3-二氰基-1,4-苯醌和单加合物的狄尔斯-阿尔德反应的所有阶段：动力学，热化学和高压效应

确定了环戊二烯与2,3-二氰基-1,4-苯并醌之间的Diels-Alder反应的动力学参数和焓，导致了两个不同的单加合物和双加合物的形成。比较了加合物的稳定性。单加合物似乎在热力学上比双加合物稳定。与之前研究的其他Diels-Alder反应的比较，我们可以得出结论，与所有研究的Dienophiles相比，考虑的Diels-Alder加合物形成时的热效应最低。