| 词条 | TRISPHAT |
| 释义 |
| verifiedrevid = 424874343 | ImageFileL1 = Trisphat.png | ImageSizeL1 = 170 | ImageFileR1 = Delta-TRISPHAT-3D-balls.png | ImageSizeR1 = 170 | IUPACName = Tetrabutylammonium Phosphorus(V) tris(tetrachlorocatecholate)PHAT | OtherNames = Bu3NH+ PHAT− |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 301687-57-0 | PubChem = | SMILES = |Section2={{Chembox Properties | Formula = [C16H36N][C18Cl12O6P] | MolarMass = 1011.06 | Appearance = colourless solid | Density = | MeltingPt = | BoilingPt = | Solubility = CH2Cl2 |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} Tributylammonium TRISPHAT is an organic salt with the formula {{chem|[(C|4|H|9|)|3|NH|+|][P(O|2|C|6|Cl|4|)|3|−|]}}. The anion features phosphorus(V) bonded to three tetrachlorocatecholate ({{chem|C|6|Cl|4|O|2|2−}}) 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. PreparationThe anion is prepared by treatment of phosphorus pentachloride with tetrachlorocatechol followed by a tertiary amine gives the anion: PCl5 + 3 C6Cl4(OH)2 → H[P(O2C6Cl4)3] + 5 HCl H[P(O2C6Cl4)3] + Bu3N Bu3NH+ [P(O2C6Cl4)3]− Using a chiral amine, the anion can be readily resolved.[1] References1. ^F. Favarger, C. Goujon-Ginglinger, D. Monchaud, J. Lacour "Large-Scale Synthesis and Resolution of TRISPHAT [Tris(tetrachlorobenzenediolato) Phosphate(V)] Anion" Journal of Organic Chemistry, 2004, volume 69, pp. 8521–8524, 2004. {{doi|10.1021/jo048641q}}. 6 : Organophosphates|Anions|Chloroarenes|Catechols|Phosphates|Nuclear magnetic resonance |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。