Reaction mecahnism of <a href="https://en.wikipedia.org/wiki/Perkin_reaction" class="extiw" title="w:Perkin reaction">Perkin reaction</a>
Roland Mattern
4 July 2010 (upload date)
<a href="//commons.wikimedia.org/wiki/User:Roland1952" title="User:Roland1952">Roland1952</a>