78657-03-1

Basic information

• Product Name: 1-(3,5-Di-tert-butyl-2-hydroxy-phenyl)-pyridinium; chloride
• Synonyms: 1-(3,5-Di-tert-butyl-2-hydroxy-phenyl)-pyridinium; chloride
• CAS NO: 78657-03-1
• Molecular Weight: 319.875
• Mol File: 78657-03-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-(3,5-Di-tert-butyl-2-hydroxy-phenyl)-pyridinium; chloride(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(3,5-Di-tert-butyl-2-hydroxy-phenyl)-pyridinium; chloride(78657-03-1)
• EPA Substance Registry System: 1-(3,5-Di-tert-butyl-2-hydroxy-phenyl)-pyridinium; chloride(78657-03-1)

Safety Data

• Hazardous Substances Data: 78657-03-1(Hazardous Substances Data)

Upstream product

• 5457-60-3 4-chloro-2,4,6-tri-tert-butylcyclohexa-2,5-dienone 
• 110-86-1 pyridine 

Relevant articles and documents

Cyclodienones. 7. Preparation and Reduction of 1-(3,5-Di-tert-butyl-2-hydroxyphenyl)pyridinium Halides

The reactions of 4-bromo- (1a) and 4-chloro-2,4,6-tri-tert-butyl-2,5-cyclohexadien-1-one (1b) with compounds such as pyridine (4a), α- (4b), β- (4c), and γ-picoline (4d), and 3,5-lutidine (4e) were carried out under various conditions to produce the corresponding 1-(3,5-di-tert-butyl-2-hydroxyphenyl)pyridinium halides (7) or their intramolecular salts (8).The reduction of 7 and 8 with NaBH4 in methanol afforded in good yields the corresponding tetrahydropyridine derivatives (21), which were reduced to o-piperidinophenols (22) by hydrogenation with Raney Ni (W2) catalyst in high yields.The reaction pathway of the formation of 7 is also discussed.