53217-56-4

Upstream product

• 6261-32-1 2-benzylidene-1-tetralone 
• 529-34-0 3,4-dihydronaphthalene-1(2H)-one 
• 5706-12-7 (E)-2-benzylidene-2,3-dihydro-1H-inden-1-one 
• 100-52-7 benzaldehyde 
• 67969-82-8 tetrafluoroboric acid diethyl ether 

Downstream Products

• 88125-57-9 C₃₀H₂₈N⁽¹⁺⁾*BF₄^(1-) 
• 90886-04-7 14-n-octyl-5,6,8,9-tetrahydro-7-phenyl-dibenzoacridinium tetrafluoroborate 
• 90886-07-0 C₃₂H₃₂N⁽¹⁺⁾*BF₄^(1-) 
• 116047-33-7 7-Phenyl-5,6,8,9-tetrahydro-dibenzo[a,j]anthracene-14-carboxylic acid methyl ester 
• 57366-68-4 5,6,8,9-tetrahydro-7-phenyldibenzolacridine 
• 76192-29-5 3,4-dihydro-2-<α-(1,2,3,4-tetrahydro-1-oxo-2-naphthyl)-benzylidene>naphthalen-1(2H)-one 
• 90886-03-6 C₂₉H₂₆N⁽¹⁺⁾*BF₄^(1-) 
• 88125-58-0 C₃₂H₃₂N⁽¹⁺⁾*BF₄^(1-) 
• 82135-18-0 14-(2-phenylethyl)-5,6,8,9-tetrahydro-7-phenyldibenzacridinium tetrafluoroborate 
• 90886-05-8 C₃₁H₃₀N⁽¹⁺⁾*BF₄^(1-) 
• 87803-27-8 C₃₀H₂₆N⁽¹⁺⁾*BF₄^(1-) 
• 90886-02-5 C₂₈H₂₄N⁽¹⁺⁾*BF₄^(1-) 
• 90886-09-2 C₃₀H₂₈NO⁽¹⁺⁾*BF₄^(1-) 
• 81128-08-7 14-benzyl-5,6,8,9-tetrahydro-7-phenyl-dibenzoacridinium tetrafluoroborate 

Relevant academic research and scientific papers

Radical C?N Borylation of Aromatic Amines Enabled by a Pyrylium Reagent

Herein, we report a radical borylation of aromatic amines through a homolytic C(sp2)?N bond cleavage. This method capitalizes on a simple and mild activation via a pyrylium reagent (ScPyry-OTf) thus priming the amino group for reacti

Boron Trifluoride as a Cyclodehydrating Agent: Synthesis of Nitrogen Heterocycles via Pyrylium Tetrafluoroborates

Pyrylium cations (1-12,Z = O+) have been prepared in high yields by the interaction of chalkones (in slight excess) and different ketones using BF3-etherate as cyclodehydrating agent or from 1,5-diketones in the presence of HBr and chalkone as hydrogen abstractor.The pyrylium cations have been converted into the corresponding nitrogen heterocycles (1-12;Z=N).

The Synthesis and Reactions of Sterically Constrained Pyrylium and Pyridinium Salts

Efficient syntheses are developed for several pyrylium cations with substitution patterns more sterically demanding than 2,4,6-triphenyl and these are examined as reagents for the conversion of primary amino into a leaving group.The 2-mesityl-4,6-diphenyl derivative did not react smoothly with amines.The 2,6-di-t-butyl-4-phenyl-pyrylium cation gave the corresponding pyridinium derivatives, but they resisted nucleophilic attack. 2-t-Butyl-4,6-diphenylpyridinium cations suffer nucleophilic attack with about the same ease as the 2,4,6-triphenyl analogues.Dihydrobenzopyrylium (6) and tetrahydrodibenzoxanthylium cations (7) gave pyridinium cations which underwent much easier nucleophilic attack: thus they alkylate xanthate anion in ethanol solution and acetate anion in acetic acid.