Synthesis of Cyclobutane Hydrocarbons By Combination of (2+2)π-Cycloaddition and Olefin Metathesis. Their Abilities as Effective Propellants

Chemistry of cyclobutane hydrocarbons and their derivatives has been a subject of scientific attention science the beginning of the last century up to present time. The reasons of such a long attention is in special features of highly strained 4-membered ring structure and peculiar reactivity of cyclobutane compounds [1]. In application sense the compounds of this type demonstrate a range of interesting properties such as biological activity [2,3], capability to store energy [4,5], monomers activity to polymerization [1], etc. They are used as insecticides, in particular insect pheromone components [2,3], highly effective propellants [4.5] and energy accumulators [6].