Equation for the conversion of 2,2,2-trifluoro-1,1-diphenylethanethiol <span class="chemf nowrap">F<span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><br>3</span>C–CPh<span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><br>2</span>–SH</span> to the corresponding sulfenyl chloride with <a href="https://en.wikipedia.org/wiki/sulfuryl_chloride" class="extiw" title="w:sulfuryl chloride">sulfuryl chloride</a>, and then on to 2,2,2-trifluoro-1,1-diphenylethanesulfinyl chloride, <span class="chemf nowrap">F<span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><br>3</span>C–CPh<span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1em;font-size:80%;text-align:left"><br>2</span>–S(O)Cl</span>, by <a href="https://en.wikipedia.org/wiki/trifluoroperacetic_acid" class="extiw" title="w:trifluoroperacetic acid">trifluoroperacetic acid</a> oxidation.
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