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・ Trisomy 22
・ Trisomy 8
・ Trisomy 9
・ Trisong Detsen
・ Trisonic Wind Tunnel (El Segundo, California)
・ Trisophista
・ Trisops
・ Trisopterus
・ Trisopterus capelanus
・ Trisopterus esmarkii
・ Trisopterus luscus
・ Trisoxazolines
・ Trisoxazolinylborate
・ Trispectes
・ Trispectrum
TRISPHAT
・ Trispila
・ Trispot darter
・ Trispyrazolylborate
・ Trisquel
・ Triss
・ Trissernis
・ Trissexodon
・ Trissexodon constrictus
・ Trissexodontidae
・ Trissino
・ Trissobrocha
・ Trissochyta
・ Trissocladius
・ Trissodoris


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TRISPHAT : ウィキペディア英語版
TRISPHAT

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Tributylammonium TRISPHAT is an organic salt with the formula ()+(). The anion features phosphorus(V) bonded to three tetrachlorocatecholate (C6Cl4O22−) ligands. This anion can be resolved into the enantiomers, which are optically stable (the picture shows the Δ enantiomer).
The TRISPHAT anion has been used as a "chiral shift reagent" for cations. It improves the resolution of 1H NMR spectra by forming diastereomeric ion pairs.
==Preparation==
The anion is prepared by treatment of phosphorus pentachloride with tetrachlorocatechol followed by a tertiary amine gives the anion:
:PCl5 + 3 C6Cl4(OH)2 → H() + 5 HCl
H() + Bu3N Bu3NH+ ()
Using a chiral amine, the anion can be readily resolved.〔F. Favarger, C. Goujon-Ginglinger, D. Monchaud, J. Lacour "Large-Scale Synthesis and Resolution of TRISPHAT (Phosphate(V) ) Anion" Journal of Organic Chemistry, 2004, volume 69, pp. 8521 -8524, 2004. .〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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