TRISPHAT

<h2 id="preparation">Preparation</h2>
<p>The anion is prepared by treatment of <a href="/facts/Phosphorus_pentachloride/oGLG4kDg">phosphorus pentachloride</a> with tetrachlorocatechol followed by a <a href="/facts/Tertiary_amine/SN7W44fv">tertiary amine</a> gives the anion:
</p>
PCl5  +  3 C6Cl4(OH)2   →   H[P(O2C6Cl4)3]  +  5 HCl
H[P(O2C6Cl4)3]  +  Bu3N   →   Bu3NH+ [P(O2C6Cl4)3]−
<p>Using a chiral amine, the anion can be readily resolved.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a>
</p>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Ratni, Hassen; Jodry, Jonathan J.; Lacour, Jérôme; Kündig, E. Peter (2000). "[n-Bu4N][Δ-TRISPHAT] Salt, an Efficient NMR Chiral Shift Reagent for Neutral Planar Chiral Tricarbonylchromium Complexes". Organometallics. 19 (19): 3997–3999. doi:10.1021/om000437f. <a href="/wiki/Organometallics" target="_blank">/wiki/Organometallics</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Favarger, France; Goujon-Ginglinger, Catherine; Monchaud, David; Lacour, Jérôme (2004). "Large-Scale Synthesis and Resolution of TRISPHAT [Tris(tetrachlorobenzenediolato) Phosphate(V)] Anion". Journal of Organic Chemistry. 69 (24): 8521–8524. doi:10.1021/jo048641q. PMID 15549835.. <a href="/wiki/Journal_of_Organic_Chemistry" target="_blank">/wiki/Journal_of_Organic_Chemistry</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
</ol>

TRISPHAT open-in-new

TRISPHAT