I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.
2,4,6-Triphenylpyrylium tetrafluoroborate is used as a sensitizer to carry out the photo oxidation of cathecol. It is also used in the preparation of three N-alkylpyridinium photosensitizers by reacting with (1R,2S)-(-)-norephedrine, (S)-(+)-2-(aminomethyl)pyrrolidine and (R)-(-)-1-cyclohexylethylamine.
K Hollmann. [Experiences with replacement of the eyelid-levator].Fortschr Kiefer Gesichtschir.1977,2298-99.
Mercedes Alvaro.; Pilar Formentín.; Hermenegildo García.; Emilio Palomares.; María J Sabater. Chiral N-alkyl-2,4,6-triphenylpyridiniums as enantioselective triplet photosensitizers. laser flash photolysis and preparative studies.J Org Chem.2002,67(15), 5184-5189.
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).
Hazard Statements: H302-H312-H315-H319-H332-H335
Harmful if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. Harmful if inhaled. May cause respiratory irritation.
Precautionary Statements: P261-P264b-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362-P501c
Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant