The rate of reactions in the solid phase with uniform grinding of crystals of dienes, anthracene, and 9,10‐dimethylanthracene, with dienophiles, tetracyanoethylene, N‐phenylmaleimide, and 4‐phenyl‐1,2,4‐triazoline‐3,5‐dione, has been studied. It was shown that, despite the high difference in the reaction rates in solution, the rates of these reactions in the solid phase are much closer. For anthracene‐tetracyanoethylene and 9,10‐dimethylanthracene‐tetracyanoethylene pairs, it was concluded that their intermolecular complexes are on the reaction pathway.

中文翻译：

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固态Diels-Alder反应速率以及反应路径上试剂之间分子复合物的位置的证据

固相与二烯，蒽，四氰基乙烯，N-苯基马来酰亚胺和4-苯基-1,2,4-三唑啉-3,5均匀研磨二烯，蒽和9,10-二甲基蒽的晶体的反应速率-dione，已经过研究。结果表明，尽管溶液中的反应速率差异很大，但固相中的这些反应速率却非常接近。对于蒽-四氰基乙烯和9,10-二甲基蒽-四氰基乙烯对，得出的结论是它们的分子间复合物在反应路径上。