Cyclotrimerisation <a href="https://en.wikipedia.org/wiki/aromatization" class="extiw" title="w:aromatization">w:aromatization</a> reaction of a diyne with a tethered alkyne to a benzene derivative with rhodium catalysis
<a href="https://en.wikipedia.org/wiki/User:EdChem" class="extiw" title="w:User:EdChem">EdChem</a> (<a href="https://en.wikipedia.org/wiki/User_talk:EdChem" class="extiw" title="w:User talk:EdChem">talk</a>)
Adapted from existing image <a href="https://en.wikipedia.org/wiki/File:Cyclotri_synth2.png" class="extiw" title="w:File:Cyclotri synth2.png">w:File:Cyclotri_synth2.png</a> with molecule labels removed