Revision of <a href="https://en.wikipedia.org/wiki/Image:Benzilicacidrearrangement.png" class="extiw" title="en:Image:Benzilicacidrearrangement.png">en:Image:Benzilicacidrearrangement.png</a>, recreated as vector graphics.
As the picture portrays a chemical reaction there is not enough treshold of originality for a copyright.
<a href="//commons.wikimedia.org/w/index.php?title=User:Speedpera&amp;action=edit&amp;redlink=1" class="new" title="User:Speedpera (page does not exist)">Speedpera</a>
<span class="int-own-work" lang="en">Own work</span>