https://surface.syr.edu/che_etd/144/
"Transannular coupling reactions of 1,6-cyclodecadiyne and synthesis an" by Xinhong Simon Gu
Iodine and bromine were discovered to be readily added to 1,6-cyclodecadiyne to regioselectively form transannular coupling products...
coupling reactionstransannularsynthesissimon