{ALF} 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):

{ALF} For a review on use as an electron-transfer photosensitizer, see: Chem. Rev., 94, 1063 (1994).

{PUB} PubChem --- The Role of Aromatic Radical Cations and Benzylic Cations in the 2,4,6-Triphenylpyrylium Tetrafluoroborate Photosensitized Oxidation of Ring-Methoxylated Benzyl Alcohols in CH2Cl2 Solution --- https://pubmed.ncbi.nlm.nih.gov/15575769

{PUB} PubChem|Springer Nature --- Capillary and microchip electrophoretic analysis of polycyclic aromatic hydrocarbons --- https://pubmed.ncbi.nlm.nih.gov/25542576

{PUB} PubChem|Springer Nature --- Direct Amination of Aromatic C–H Bonds with Free Amines --- https://pubmed.ncbi.nlm.nih.gov/32236795

{PUB} PubChem|Springer Nature --- Involvement of triplet excited states in the electron transfer photodegradation of cinnamic acids using pyrylium and thiapyrylium salts as photocatalysts --- https://pubmed.ncbi.nlm.nih.gov/17668114

{PUB} PubChem|Springer Nature --- Photosensitiser-controlled regioselectivity in the electron-transfer cycloreversion of 2,3-diphenyloxetanes --- https://pubmed.ncbi.nlm.nih.gov/14521220

{PUB} PubChem|Springer Nature --- Reactions of Organic Ions at Ambient Surfaces in a Solvent-Free Environment --- https://pubmed.ncbi.nlm.nih.gov/22290484

{PUB} PubChem|Springer Nature --- Sensitized photooxygenation of the fungicide furalaxyl --- https://pubmed.ncbi.nlm.nih.gov/15341311

{PUB} Springer Nature --- Catalytic Reduction of Pyridinium, Pyrylium, and Thiopyrylium Salts. (Review) --- https://doi.org/10.1023/a:1012491504815

{PUB} Springer Nature --- Direct detection of photo-induced reactions by IR: from Brook rearrangement to photo-cata