773-01-3

Basic information

• Product Name: 2,4,6-TRIMETHYLPYRYLIUM TETRAFLUOROBORATE
• Synonyms: TRIMETHYLPYRYLIUM TETRAFLUOROBORATE;2,4,6-TRIMETHYLPYRYLIUM TETRAFLUOROBORATE;AKOS 90396;2,4,6-Trimethylpyrylium tetrafluoroborate, 98+%
• CAS NO: 773-01-3
• Molecular Formula: BF₄*C₈H₁₁O
• Molecular Weight: 209.98
• EINECS: 212-256-2
• Product Categories: Iodonium Sulfonium & Oxonium Compounds;Oxonium Compounds
• Mol File: 773-01-3.mol
• Article Data: 4

Chemical Properties

• Melting Point: 224-226°C
• Appearance: /
• Water Solubility: Soluble in water and methanol.
• BRN: 3639361
• CAS DataBase Reference: 2,4,6-TRIMETHYLPYRYLIUM TETRAFLUOROBORATE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,6-TRIMETHYLPYRYLIUM TETRAFLUOROBORATE(773-01-3)
• EPA Substance Registry System: 2,4,6-TRIMETHYLPYRYLIUM TETRAFLUOROBORATE(773-01-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• RIDADR: UN 1759 8/PG III
• TSCA: T
• HazardClass: IRRITANT
• PackingGroup: III
• Hazardous Substances Data: 773-01-3(Hazardous Substances Data)

Usage

Uses

It is used in the radical Arylation Reactions of 4, 6, 8-Trimethylazulene.

InChI:InChI=1/C8H11O.BF4/c1-6-4-7(2)9-8(3)5-6;2-1(3,4)5/h4-5H,1-3H3;/q+1;-1

Upstream product

• 108-24-7 acetic anhydride 
• 75-65-0 tert-butyl alcohol 
• 3383-21-9 3,5-di-tert-butyl-o-benzoquinone 
• 123-42-2 4-Hydroxy-4-methyl-2-pentanone 
• 1004-36-0 2,6-dimethylpyrone 
• 917-64-6 methyl magnesium iodide 

Downstream Products

• 110993-39-0 N,N-dihexyl-m-xylidine 
• 16800-74-1 N (dimethyl-3,5-phenyl-1) piperidine 
• 110993-36-7 N (dimethyl-3,5-phenyl-1) pyrrolidine 
• 48165-73-7 3,4,5-trimethylpyrylium tetraborate 

Relevant articles and documents

N -aminopyridinium salts as precursors for N-centered radicals - Direct amidation of arenes and heteroarenes

Readily prepared N-aminopyridinium salts are valuable precursors for the generation of N-centered radicals. Reduction of these salts by single electron transfer allows for clean generation of amidyl radicals. It is shown that direct radical C-H amination of heteroarenes and arenes can be achieved with N-aminopyridinium salts under mild conditions by using photoredox catalysis.

SYNTHESE DE N,N-DIALKYL-3,5-DIALKYL-ANILINES A PARTIR DES SELS DE TRIALKYL-2,4,6-PYRYLIUM

We have optimized through an experimental design the synthesis of N,N-diethyl-3,5-dimethylaniline from 2,4,6-trimethylpyrylium terafluoroborate (I) and diethylamine in a new reaction medium (acetonitrile/triethylamine).Optimal conditions have been applied with high yields to the synthesis of various 3,5-dimethylanilines derived from I and dimethylamine, morpholine, N-methylpiperazine, piperazine, dihexylamine, piperidine, and pyrrolidine respectively. 2-Alkyl-4,6-dimethylpyrylium tetrafluoroborates react regioselectively with diethylamine to afford N,N-diethyl-3-alkyl-5-methyl anilines under these conditions.