The diene synthesis reaction of 2-methyl-heptene-6-yn-3-ol-2 and its some functionally substituted derivatives with hexachloro- and 5,5-dimetoxytetrachlorcyclopentadienes in a medium of p-xylol at 125–130°C has been investigated. It has been shown that the reaction proceeds due to end double bond with formation of endo-adducts. A yield is 80–90%.