An extension of the Schlosser modification of the <a href="https://en.wikipedia.org/wiki/Wittig_reaction" class="extiw" title="w:Wittig reaction">w:Wittig reaction</a>, by Corey &amp; Yamamoto, <i>J. Am. Chem. Soc.</i> <b>92</b>, 226 (1970). Drawn in IsisDraw, scanned and uploaded by <a href="https://en.wikipedia.org/wiki/User:Walkerma" class="extiw" title="w:User:Walkerma">w:User:Walkerma</a>.
<a href="//commons.wikimedia.org/wiki/User:Walkerma" title="User:Walkerma">Walkerma</a>
<span class="int-own-work" lang="en">Own work</span>