Knoevenagel reaction of 2-methoxybenzaldehyde <b>(1)</b> and N,N-diethylthiobarbituric acid <b>(2)</b> in piperidine / ethanol to form 1,3-Diethyl-5-(2-methoxybenzylidene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione <b>(3)</b>.
<a href="//commons.wikimedia.org/wiki/User:Hbf878" title="User:Hbf878">Hbf878</a>
2017-12-31
<span class="int-own-work" lang="en">Own work</span>, based on <cite style="font-style:normal">Asiri, A.M. (2004). "1,3-Diethyl-5-(2-methoxybenzylidene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione". <i>Molbank</i> <b>2004</b> (1): M359. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.3390/M359">10.3390/M359</a>.</cite>