This article provides an overview of the results of scientific research in the field of application of alkylated(cycloalkylated, arylated) substituted cyclopentadiene in the diene synthesis reaction, better known in the scientific literature as the Diels-Alder reaction. It should be noted that this reaction, discovered in 1928 by German research chemistsOtto Diels and Kurt Alder, has not lost its practical relevance to this day, despite its more than a century of history. Thediene synthesis reaction is a universal method for the preparation of six-membered carbo- and heterocyclic compounds,which are widely used in various fields of industry and agriculture, as well as in various areas of everyday life. Dienecondensations involving cyclopentadiene have been studied quite extensively, while diene condensation reactions involving alkyl substituted cyclopentadiene still require a more detailed approach and continued research in this area, the searchfor new areas of application of the obtained adducts creates good prerequisites for systematic research in this area. Interestin these studies is also expanded due to the fact that alkylated derivatives of cyclopentadiene, unlike cyclopentadieneitself, have a higher reactivity, which is associated with the presence of electron-donating alkyl groups in their molecules,which increase the electron density in the cyclopentadiene core, thereby contributing to a more fast and easy reactions ofdiene synthesis with their participation. The paper also shows the results of the authors’ own research carried out in thelaboratory “Cycloolefins” of the Institute of Petrochemical Processes.
