2,4,6-Triphenylpyrylium tetrafluoroborate

• Catalog No.: A18217
• CAS Number: 448-61-3
• M. F.: C23H17BF4O
• M. W.: 396.1850928
• Purity: 97%

SYNONYMS

• Title: 2,4,6-三苯基吡喃鎓四氟硼酸盐
• IUPAC name: 2,4,6-triphenyl-1λ^4-pyran-1-ylium; tetrafluoroboranuide
• IUPAC Traditional name: 2,4,6-triphenyl-1λ^4-pyran-1-ylium tetrafluoroborate

DATABASE IDS

• EC Number: 207-186-4
• Beilstein Number: 3586533
• MDL Number: MFCD00012001
• CAS Number: 448-61-3

PROPERTIES

• Purity: 97%
• Melting Point: 248-254°C
• GHS Hazard statements: H301-H315-H319-H335
• European Hazard Symbols: X
• GHS Precautionary statements: P261-P301+P310-P305+P351+P338-P302+P352-P405-P501A
• Risk Statements: 22-36/37/38
• RTECS: UZ1370000
• Safety Statements: 26-36/37
• Storage Warning: Moisture Sensitive
• TSCA Listed: 否

REFERENCES

• Amines react with pyrylium salts to give N-alkylpyridinium salts. Since the pyridine can be displaced by a variety of nucleophiles, the result is that the amine has been converted to a useful alkylating species: J. Chem. Soc., Perkin 1, 418 (1979). Reviews: Tetrahedron, 36, 679 (1980); Angew. Chem. Int. Ed., 23, 420 (1984); Russ. Chem. Rev., 51, 469 (1982):
  
• For a review on use as an electron-transfer photosensitizer, see: Chem. Rev., 94, 1063 (1994).