Abstract: Cyclododecene holds significant application value in the fields of high-performance materials and fine chemicals, and its efficient production is crucial for fields such as those in specialty nylon manufacturing. The selective hydrogenation of 1, 5, 9-cyclododecatriene (abbreviated as cyclododecyltiene) is the key pathway for cyclododecene synthesis, with the optimization of catalysts and processes being the primary focus for improving yield and reducing production costs. This review presents recent progress on selective hydrogenation of cyclododecatriene to cyclododecene, primarily introducing the reaction mechanism, comparing the advantages and disadvantages of different technologies, and the reaction performance of various catalysts. The existing problems and challenges in the selective hydrogenation of cyclododecatriene to cyclododecene are also analyzed. Finally,this paper concludes with some concluding remarks on the future development of selective hydrogenation of cyclododecatriene for the production of cyclododecene.

Key words: selective hydrogenation, cyclododecatriene, cyclododecene, catalyst, process