Cyclodecyne
Cyclodecyne is an organic compound with the chemical formula. The molecule has a ring of 10 carbon atoms, connected by nine single bonds and one triple bond.
Synthesis
Cyclodecyne was first synthesized and isolated in the mid-20th century as part of studies on medium-ring hydrocarbons. A common synthetic route involves the double dehydrohalogenation of 1,2-dibromocyclodecane using a strong base such as potassium hydroxide or sodium amide in a high-boiling solvent:Alternatively, Fritsch–Buttenberg–Wiechell rearrangement of suitable dibromovinyl precursors has been used to generate cyclodecyne under milder conditions.