| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Email: |
saleschina@alfa-asia.com |
2,4,6-Trimethylpyrylium tetrafluoroborate manufacturers
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| | 2,4,6-Trimethylpyrylium tetrafluoroborate Basic information |
| | 2,4,6-Trimethylpyrylium tetrafluoroborate Chemical Properties |
| Melting point | 224-226°C | | solubility | Acetonitrile (Slightly), Methanol (Slightly, Heated) | | form | powder to crystaline | | color | White to Orange to Green | | Water Solubility | Soluble in water and methanol. | | BRN | 3639361 | | InChI | InChI=1S/C8H11O.BF4/c1-6-4-7(2)9-8(3)5-6;2-1(3,4)5/h4-5H,1-3H3;/q+1;-1 | | InChIKey | PYOPRIFMELCENN-UHFFFAOYSA-N | | SMILES | [B-](F)(F)(F)F.C1(C)C=C([O+]=C(C)C=1)C | | CAS DataBase Reference | 773-01-3(CAS DataBase Reference) | | EPA Substance Registry System | Pyrylium, 2,4,6-trimethyl-, tetrafluoroborate(1-) (773-01-3) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36/37/39 | | RIDADR | UN 1759 8/PG III | | TSCA | TSCA listed | | HS Code | 2932.99.9090 | | HazardClass | IRRITANT | | PackingGroup | III |
| Provider | Language |
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ALFA
| English |
| | 2,4,6-Trimethylpyrylium tetrafluoroborate Usage And Synthesis |
| Uses | It is used in the radical Arylation Reactions of 4, 6, 8-Trimethylazulene. | | Synthesis | Method 1: Acetic anhydride (100 mL, 1.06 mol, 13.0 eq.) and tert-butanol (8.00 mL, 84.2 mmol, 1.00 eq.) were added to a round-bottom flask equipped with a condenser and a dropping funnel. Fluoroboric acid (14 mL, 78 mmol, 0.95 eq.) was added dropwise. During its addition, the temperature was raised to 80°C. After completion of the exothermic reaction, the mixture was cooled to 5C and cold Et 2 O was added, the precipitate was collected, washed with cold Et 2 O and dried. 2,4,6-Trimethylpyranium tetrafluoroborate was obtained as a colorless solid (11.6 g, 55.4 mmol, 71%). 1H NMR (300 MHz, CD3OD, 300 K) δ= 7.87 (s, 2H, CHarom), 2.88 (s, 6H, 2× CH3), 2.72 (s, 3H, CH3). 13 C NMR (75MHz, CDCl 3, 300K) δ= 179.5 (Cq), 134.1 (Cq), 124.3 (CH), 21.1 (CH 3), 20.7 (CH 3). 19F NMR (282MHz, CD3OD, 300K) δ= -154.7. HRMS (ESI) m/z = 123.0804 Calculated values. MS (ESI): C8H11O [M] +, measured value: 123.0762. Spectral data is consistent with previously reported data.
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| | 2,4,6-Trimethylpyrylium tetrafluoroborate Preparation Products And Raw materials |
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