7461-72-5

Basic information

• Product Name: 4,4'-DIMETHOXY-2,2'5,5'-TETRAACETOXYBIPHENYL
• Synonyms: 4,4'-DIMETHOXY-2,2'5,5'-TETRAACETOXYBIPHENYL
• CAS NO: 7461-72-5
• Molecular Formula: C22H22O10
• Molecular Weight: 446.4
• Mol File: 7461-72-5.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,4'-DIMETHOXY-2,2'5,5'-TETRAACETOXYBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-DIMETHOXY-2,2'5,5'-TETRAACETOXYBIPHENYL(7461-72-5)
• EPA Substance Registry System: 4,4'-DIMETHOXY-2,2'5,5'-TETRAACETOXYBIPHENYL(7461-72-5)

Safety Data

• Hazard Codes: Xi
• HazardClass: IRRITANT
• Hazardous Substances Data: 7461-72-5(Hazardous Substances Data)

Usage

General Description

4,4'-Dimethoxy-2,2'5,5'-Tetraacetoxybiphenyl, also known as DMTAB, is a biphenyl compound with four acetoxy groups attached to the phenyl rings and two methoxy groups attached to the 4 and 4' positions. It is commonly used as a reagent for the selective oxidation of alcohols to carbonyl compounds. DMTAB has been shown to be an effective and versatile reagent for the synthesis of a variety of organic compounds, making it a valuable tool in organic chemistry. It is also used in the preparation of pharmaceutical intermediates and as a building block for the synthesis of various fine chemicals. Additionally, DMTAB has potential applications in the fields of materials science and medicinal chemistry due to its unique structural properties.

Upstream product

• 90-11-9 1-Bromonaphthalene 
• 51281-73-3 2-(2',5'-dihydroxy-4'-methoxyphenyl)-5-methoxy-p-benzoquinone 
• 108-24-7 acetic anhydride 
• 391895-44-6 4,4'-dimethoxy-2,5,2',5'-tetrahydroxy-biphenyl 
• 43042-33-7 4,4'-Dimethoxybiphenyl-2,5,2',5'-bis-p-benzoquinone 
• 76303-43-0 Acetic acid 4-acetoxy-5-methoxy-2-(4-methoxy-3,6-dioxo-cyclohexa-1,4-dienyl)-phenyl ester 

Downstream Products

• 1702-67-6 2,2',4,4',5,5'-hexamethoxybiphenyl 
• 7461-76-9 Biphenylhexayl-(2,4,5,2',4',5')-hexaacetat 
• 145386-12-5 2,3,7,8-tetraacetoxy-dibenzofuran 

Relevant articles and documents

The Photochemical Discolouration of Methoxy-p-benzoquinone in Solution

Irradiation of a dimethoxyethane solution of methoxy-p-benzoquinone with sun-light lamps results in discolouration of the solution and the rapid disappearance of the starting material.A strongly coloured red dibenzofuran derivative, 8-hydroxy-3,7-dimethoxybenzofuran-1,4-quinone, was isolated from the reaction mixture and identified by comparison with the synthesized compound.The photochemical reactions of the possible intermediates, the dimer quinones 5-methoxy-2-(2,5-dihydroxy-4-methoxyphenyl)1,4-benzoquinone and 4,4'-dimethoxybiphenyl-2,5,2',5'-bis-quinone, were also studied by visible light spectroscopy and significant changes in the spectra were observed.It is concluded that these dimer quinones and their rearrangement products play a significant role in the production of colour in old methoxy-p-benzoquinone solutions and other solutions in which this quinone participates as an intermediate.In alkaline aqueous solution the isolated dibenzofuran derivative rapidly disappears via radical reactions.