61548-94-5

Basic information

• Product Name: 4-ethoxy-2,3,5,6-tetramethylphenol
• CAS NO: 61548-94-5
• Molecular Formula: C₁₂H₁₈O₂
• Molecular Weight: 194.2701
• Mol File: 61548-94-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 313°C at 760 mmHg
• Flash Point: 145°C
• Density: 1.004g/cm³
• Vapor Pressure: 0.000278mmHg at 25°C
• Refractive Index: 1.519
• CAS DataBase Reference: 4-ethoxy-2,3,5,6-tetramethylphenol(CAS DataBase Reference)
• NIST Chemistry Reference: 4-ethoxy-2,3,5,6-tetramethylphenol(61548-94-5)
• EPA Substance Registry System: 4-ethoxy-2,3,5,6-tetramethylphenol(61548-94-5)

Safety Data

• Hazardous Substances Data: 61548-94-5(Hazardous Substances Data)

Upstream product

• 527-17-3 Duroquinone 
• 97-93-8 triethylaluminum 
• 101427-03-6 phosphoric acid-(4-ethoxy-2,3,5,6-tetramethyl-phenyl ester)-diethyl ester 

Downstream Products

• 65080-93-5 4-Chloro-benzoic acid 4-ethoxy-2,3,5,6-tetramethyl-phenyl ester 
• 108850-42-6 4,4-diethoxy-2,3,5,6-tetramethyl-cyclohexa-2,5-dienone 

Relevant articles and documents

ON THE 1,6-ADDITION OF ALKYLALUMINIUM COMPOUNDS TO para-QUINONES

Ethyl, n-butyl and i-butylaluminium dichlorides undergo 1,6-addition to a conjugated bond system O=C-C=C-C=O of para-quinones.Methylaluminium dichloride is inactive in this addition, and triethylaluminium gives low yields.The reactivities of the quinones vary with their electron affinities, and the highest yields of 1,6-addition are obtained in the reactions of chlorine derivatives of 1,4-benzoquinone.The results are discussed in terms of a radical mechanism involving a homolytic cleavage of the Al-C bond in the donor-acceptor complex formed between the reactants followed by combination of alkyl radicals and aluminium derivatives of semiquinone within a cage.The stable donor-acceptor complexes and aluminium derivative of semiquinone were isolated and characterized from the reactions of aluminium trichloride with 2,3,5,6-tetramethyl-1,4-benzoquinone and 2,3,5,6-tetrachloro-1,4-benzoquinone, respectively.