694-56-4

Basic information

• Product Name: 1-methylpyridinium
• Synonyms: 1-methylpyridinium;N-Methylpyridinium;7680-73-1 (Chloride);Pyridinium, 1-methyl-;1-Methylpyridin-1-iuM;5-nitro-2-[2-(4-nitro-2-sulfonatophenyl)ethenyl]benzenesulfonate;2-[2-bromo-2-(4-nitro-2-sulfonatophenyl)ethenyl]-5-nitrobenzenesulfonate;5-nitro-2-[(6-nitro-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-ylidene)methyl]benzenesulfonate
• CAS NO: 694-56-4
• Molecular Formula: C₆H₈N
• Molecular Weight: 0
• Mol File: 694-56-4.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1-methylpyridinium(CAS DataBase Reference)
• NIST Chemistry Reference: 1-methylpyridinium(694-56-4)
• EPA Substance Registry System: 1-methylpyridinium(694-56-4)

Safety Data

• Hazardous Substances Data: 694-56-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C6H8N/c1-7-5-3-2-4-6-7/h2-6H,1H3/q+1

Upstream product

• 110-86-1 pyridine 
• 813-77-4 Dimethyl chlorophosphate 
• 27032-03-7 1-(ethoxycarbonylmethyl)pyridinium chloride 
• 3711-50-0 phosphorochloridothioic acid,O,S-dimethyl ester 

Downstream Products

• 694-85-9 1-methyl-2-pyridone 

Relevant articles and documents

Deprotonation of 1-(carbethoxyalkyl)pyridinium halides with strong N-bases

The rate constants were measured for deprotonation of 1-(carbethoxymethyl)pyridinium chloride and 1-(2-carbethoxyethyl)pyridinium bromide with strong bases (DBU, MTBD, TBD and P2-Et) in acetonitrile. The UV spectra and semiempirical calculations are consistent with an ylide structure of the deprotonated species. The ylides obtained slowly decompose, and the reaction products were identified by 1H NMR spectroscopy; 1-(carbethoxymethyl)pyridinium chloride gives N-methylpyridinium cation and ethanol and 1-(2-carbethoxyethyl)pyridinium bromide converts to pyridine and ethyl acrylate. Copyright