24456-79-9

Basic information

• Product Name: 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthalene-1,1',4,4'-tetraone
• Synonyms: 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-bi[1,4-naphthoquinone];5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthalene-1,1',4,4'-tetraone;Biramentaceone
• CAS NO: 24456-79-9
• Molecular Formula: C₂₂H₁₄O₆
• Molecular Weight: 374.34
• Mol File: 24456-79-9.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthalene-1,1',4,4'-tetraone(CAS DataBase Reference)
• NIST Chemistry Reference: 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthalene-1,1',4,4'-tetraone(24456-79-9)
• EPA Substance Registry System: 5,5'-Dihydroxy-7,7'-dimethyl-2,2'-binaphthalene-1,1',4,4'-tetraone(24456-79-9)

Safety Data

• Hazardous Substances Data: 24456-79-9(Hazardous Substances Data)

Upstream product

• 61836-47-3 5,5'-dimethoxy-7,7'-dimethyl-[2,2']binaphthalenylidene-1,4,1',4'-tetraone 
• 75445-77-1 1,5-Bis(benzyloxy)-4-methoxy-7-methylnaphthalin 
• 75445-72-6 4,8-Bis(benzyloxy)-6-methyl-1-naphthol 
• 75445-65-7 5-Benzyloxy-7-methyl-naphthalene-1,4-diol 
• 75445-60-2 5-(benzyloxy)-7-methylnaphthalene-1,4-dione 
• 75445-59-9 1,4,8-Tris(acetoxy)-5-chlor-6-methylnaphthalin 
• 52431-61-5 5-chloro-8-hydroxy-6-methylnaphthalene-1,4-dione 
• 14787-38-3 7-methyljuglone 
• 33471-51-1 1,4,5-Tris(acetoxy)-7-methylnaphthalin 
• 59-50-7 4-Chloro-3-methylphenol 
• 75445-82-8 4,5-dimethoxy-7-methylnaphthalen-1-ol 
• 103412-21-1 dihydrodiosindigo B 
• 103412-19-7 diosindigo B₂ 
• 103412-16-4 isocelebaquinone 

Downstream Products

• 1027064-29-4 4,11-bis-benzyloxy-5-methoxy-2,9-dimethyldinaphtho[1,2-b;2',3'-d]furan-7,12-dione 
• 706779-34-2 4,11-bis-benzyloxy-5-hydroxy-2,9-dimethyldinaphtho[1,2-b;2',3'-d]furan-7,12-dione 
• 104505-82-0 5,5'-Dibenzyloxy-1,1',4,4'-tetramethoxy-7,7'-dimethyl-2,2-binaphthyl 
• 104505-84-2 5'-Benzyloxy-1,1',4,4'-tetramethoxy-7,7'-dimethyl-2,2'-binaphthyl-5-ol 
• 104505-97-7 5'-Benzyloxy-1,4-dimethoxy-7,7'-dimethyl-2,2'-binaphthyl-1',4':5,8-dichinon 
• 62996-97-8 Euclanon 
• 104505-81-9 5,5'-bis-benzyloxy-7,7'-dimethyl-[2,2']binaphthalenyl-1,4,1',4'-tetraone 

Relevant articles and documents

A PENTACYCLIC QUINONE AND DIOSINDIGO B FROM THE HEARTWOOD OF DIOSPYROS MELANOXYLON

Diosindigo A, diosindigo B and biramentaceone have been isolated from heartwood of Diospyros melanoxylon.A violet pigment isolated from the same source has been shown to be a new pentacyclic quinone.Sunlight causes diosindigo B to change to the pentacyclic quinone and biramentaceone.The intense peaks at m/e 389 and 388 in the mass spectrum of diosindigo B are doublets which arise by fragmentation of both M+ and M+ + 2.Key Word Index- Diospyros melanoxylon; Ebenaceae; naphthaquinones; diosindigo B; rearrangement; diosindigo A; biramentaceone.

Biomimetic synthesis of the dinaphthofuranquinone violet-quinone, utilizing oxidative dimerization with the ZrO2/O2 system

The first total and biomimetic synthesis of violet-quinone (1), which has a dinaphthofuranquinone (DNFQ) framework, is described. This synthesis features the oxidative dimerization of 1-naphthol 4 and the construction of the DNFQ framework by photochemica

Dimeric Naphthoquinones, IV1). - Synthesis of Biramentaceone, Mamegakinone and Rotundiquinone

Mamegakinone (8a), biramentaceone (12a), 3,3'-bijuglone (8b), 2,2-bijuglone (12b) and their methyl ethers were prepared by oxidative coupling of substituted 4-methoxy-1-naphthols; indigoids like 24 are intermediates.Cooxidation of the isomeric dimethoxy-1