15696-48-7

Basic information

• Product Name: Pyrylium, 2,6-diphenyl-, tetrafluoroborate(1-)
• CAS NO: 15696-48-7
• Molecular Formula: C17H13O.BF4
• Molecular Weight: 320.094
• Mol File: 15696-48-7.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: Pyrylium, 2,6-diphenyl-, tetrafluoroborate(1-)(CAS DataBase Reference)
• NIST Chemistry Reference: Pyrylium, 2,6-diphenyl-, tetrafluoroborate(1-)(15696-48-7)
• EPA Substance Registry System: Pyrylium, 2,6-diphenyl-, tetrafluoroborate(1-)(15696-48-7)

Safety Data

• Hazardous Substances Data: 15696-48-7(Hazardous Substances Data)

Upstream product

• 122-51-0 orthoformic acid triethyl ester 
• 98-86-2 acetophenone 
• 54146-61-1 2,6-diphenyl-4-phenylacetylenyl-4H-pyran 
• 173257-83-5 1,5-diphenyl-3-phenylethynyl-1,5-pentanedione 
• 3558-68-7 2,6-diphenylpyrylium perchlorate 
• 109-63-7 boron trifluoride diethyl etherate 
• 1718-50-9 1,5-diphenylpentane 
• 6263-83-8 1,5-diphenyl-1,5-pentanedione 
• 341-02-6 trityl tetrafluoroborate 
• 71-43-2 benzene 
• 2873-74-7 gloutaric dichloride 

Downstream Products

• 70336-73-1 2,7-diphenyl-[1,3]oxazepine 
• 2340-23-0 4-methyl-2,6-diphenylpyrylium tetrafluoroborate 
• 42506-57-0 2,6,2',6'-tetraphenyl-[4,4']bipyranylidene 
• 39246-87-2 2,6,2',6'-tetraphenyl-4H,4'H-[4,4']bipyranyl 
• 20052-66-8 2,6-diphenyl-4H-pyran 
• 20399-89-7 (2,6-diphenyl-4H-pyran-4-ylidene)acetaldehyde 
• 86926-24-1 meso-N-methyl-2.6-diphenylpiperidine 
• 54146-61-1 2,6-diphenyl-4-phenylacetylenyl-4H-pyran 
• 221696-16-8 4H-4-(1H-benzotriazol-1-yl)-2,6-diphenylpyran 
• 1718-50-9 1,5-diphenylpentane 
• 5587-78-0 4-hydroxy-3,4-diphenylcyclopent-2-en-1-one 
• 1252-67-1 4-benzyl-2,6-diphenylpyrylium perchlorate 
• 221696-19-1 4-(1H-benzotriazol-1-yl)-1,2-diphenyl-2,4-cyclopentadien-1-ol 
• 74775-18-1 (4-ferrocenyl-2,6-diphenylpyrylium)⁽¹⁺⁾ BF₄ 

Relevant articles and documents

SYNTHESIS OF 2,6-DIARYLPYRYLIUM TETRAFLUOROBORATES

A number of previously unknown 2,6-diarylpyrylium tetrafluoroborates was obtained by the reaction of substituted acetophenones with ethyl orthoformate and boron trifluoride etherate.

Design of π -extended dipyranylidenes as redox-active materials

A series of novel tetrasubstituted dipyranylidenes (DIPO) consisting of large π-extended moieties located at the four edge of the quinoidal core were synthesized and characterized with UV–visible, photoluminescence spectroscopies and cyclic voltammetry. Tetraphenyldipyranylidene compound has a high molar absorption coefficient with ε = 8.73 × 104 l/mol.cm at 456 nm. Larger π-extended DIPO derivatives show a bathochromic absorption peak with lower molar absorption coefficient. In the presence of large π-extended moieties, these molecules present a higher first oxidation potential, leading to a deeper HOMO level. Remarkably, naphthyl, benzothienyl and benzofuryl-substituted DIPO show a third oxidation potential at 0.91 V, 0.99 V and 1.08 V respectively. These novel compounds which combined both aromatic and quinoidal characters are attractive for their applications as multiredox active materials.

Synthetic studies on a series of functionalized pyrylium salts, 4-chloro- and 4-bromophosphinines

A series of new pyrylium salts that bear sulfonate and phosphonate groups were obtained from the reactions between 2,6-diphenyl-4H-pyran-4-one, sulfonic anhydride, and chlorophosphates, and analyzed spectroscopically. Furthermore, treatment of 2,6-diphenyl-4H-pyran-4-one with phosphoryl chloride or bromide afforded the corresponding 4-chloro- and 4-bromopyrylium tetrafluoroborates in good yield. Subsequently, the synthesis of the corresponding 4-chloro- and 4-bromophosphinines was accomplished by treating the respective chloro- and bromopyrylium tetrafluoroborates with tris(trimethylsilyl)phosphine.