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| | TRIS(PENTAFLUOROPHENYL)BORANE Basic information | | Uses |
| | TRIS(PENTAFLUOROPHENYL)BORANE Chemical Properties |
| Melting point | 126-131 °C (lit.) | | Boiling point | 327.3±42.0 °C(Predicted) | | density | 0.73 g/mL at 20 °C | | refractive index | n20/D 1.41 | | Fp | 7 °C | | storage temp. | Inert atmosphere,Store in freezer, under -20°C | | solubility | Soluble in hexane, chloroform, dichloromethane, toluene, and polar solvents. | | form | Powder | | color | White to light yellow-beige | | Specific Gravity | 1.7 | | Sensitive | Moisture Sensitive | | Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions | | λmax | 306nm(Toluene)(lit.) | | Merck | 14,9755 | | BRN | 2931347 | | InChI | 1S/C18BF15/c20-4-1(5(21)11(27)16(32)10(4)26)19(2-6(22)12(28)17(33)13(29)7(2)23)3-8(24)14(30)18(34)15(31)9(3)25 | | InChIKey | OBAJXDYVZBHCGT-UHFFFAOYSA-N | | SMILES | Fc1c(F)c(F)c(B(c2c(F)c(F)c(F)c(F)c2F)c3c(F)c(F)c(F)c(F)c3F)c(F)c1F | | CAS DataBase Reference | 1109-15-5(CAS DataBase Reference) | | EPA Substance Registry System | Borane, tris(2,3,4,5,6-pentafluorophenyl)- (1109-15-5) |
| | TRIS(PENTAFLUOROPHENYL)BORANE Usage And Synthesis |
| Uses | Tris(pentafluorophenyl)borane (CAS# 1109-15-5) is a useful research chemical, used as a catalyst in the metal-free catalytic reductive cleavage of enol ethers via proposed mechanism of tandem hydrosilylation and silicon-assisted β-elimination. Tris(pentafluorophenyl)borane also appears as an ancillary ligand in luminescent isocyano Rh(I) complexes. | | Chemical Properties | white powder | | Uses | Catalyst in organic transformations; cocatalyst with group IV metallocene alkyls in olefin polymerization. | | Uses | Tris(pentafluorophenyl)borane is used as an excellent activator component in homogeneous Ziegler-Natta chemistry. It is also used as a catalyst for reductions, alkylations, hydrometallation reactions and catalyzed aldol-type reactions. It is a useful Lewis acid and catalyzes hydrosilylation of aldehydes. Further, it is used in olefin polymerization catalysis. It serves as a reagent in the preparation of organometallic complexes. In addition to this, it is useful as polymerization catalysts and used to study the heterolytic cleavage of dihydrogen in associated with tri-tert-butylphosphine. | | General Description | B(C6F5)3 is a Lewis acid, stronger than the inorganic parent molecule BF3. In contrast to the prominent Lewis acids, the pentafluorides of the heavier elements of group 15, B(C6F5)3 has no oxidizing properties. B(C6F5)3 forms adducts with neutral and weaker Lewis bases. B(C6F5)3 has the capability to easily accept anionic ligands bonded to metals. | | Synthesis | A three-necked vial (250 mL) was charged with pentafluorobromobenzene (0.09 mol, 22.2 g) followed by 2-methyltetrahydrofuran
Furan (100 mL). n-BuLi (2.5 M, 0.09 mol, 36 mL) was added dropwise at 25 C and reacted for 6.0h
After that, trimethyl borate (0.03 mol, 3.1 g) was added dropwise at 25 C for 10 min. at 25 C .
After 16h of reaction at 25C, the reaction was monitored by GC. The reaction solution was poured into water and extracted twice with 2-methyltetrahydrofuran, .
The organic layers were combined, washed twice with water and once with saturated saline, the organic layer was dried with sodium sulfate, and the was evaporated under reduced pressure.
2-methyltetrahydrofuran and recovered 2-methyltetrahydrofuran to obtain the crude product, which was recrystallized with n-hexane to obtain trans-(pentafluorophenyltetrazolium)boron (0.0049 mol, 2.48 g) in a yield of 16.2%. |
| | TRIS(PENTAFLUOROPHENYL)BORANE Preparation Products And Raw materials |
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