96861-91-5

Basic information

• Product Name: 3,11-Dihydro-3,3,8-trimethylpyrano[3,2-a]carbazole-7,10-dione
• Synonyms: 3,11-Dihydro-3,3,8-trimethylpyrano[3,2-a]carbazole-7,10-dione;Pyrayaquinone B
• CAS NO: 96861-91-5
• Molecular Formula: C18H15NO3
• Molecular Weight: 293.3166
• Mol File: 96861-91-5.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3,11-Dihydro-3,3,8-trimethylpyrano[3,2-a]carbazole-7,10-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 3,11-Dihydro-3,3,8-trimethylpyrano[3,2-a]carbazole-7,10-dione(96861-91-5)
• EPA Substance Registry System: 3,11-Dihydro-3,3,8-trimethylpyrano[3,2-a]carbazole-7,10-dione(96861-91-5)

Safety Data

• Hazardous Substances Data: 96861-91-5(Hazardous Substances Data)

Upstream product

• 2835-98-5 2-Hydroxy-4-methylanilin 
• 766-85-8 3-methoxy-1-iodobenzene 
• 139726-47-9 Murrayaquinone-E 
• 135082-73-4 2-(3-Methoxyanilino)-5-methyl-1,4-benzoquinone 
• 591-27-5 m-Hydroxyaniline 
• 95-71-6 2-methylbenzene-1,4-diol 
• 536-90-3 m-Anisidine 
• 110519-58-9 7-methoxy-3-methyl-9H-carbazole-1,4-quinone 
• 42758-84-9 acetic acid 3-aminophenyl ester 
• 621-42-1 meta-hydroxyacetanilide 
• 135082-84-7 5-Acetamido-2,2-dimethyl-2H-chromene 
• 553-97-9 2-Methyl-1,4-benzoquinone 

Relevant articles and documents

Palladium-Catalyzed Synthesis of Pyrayaquinones, Murrayaquinones, and Murrayafoline-B

We describe the total synthesis of murrayafoline-B and seven carbazole-1,4-quinone alkaloids. A palladium(II)-catalyzed oxidative cyclization is used to construct the carbazole skeleton. Pyran annulation and oxidation provide pyrayaquinone-A, -B, and -C. DIBAL-H-promoted reductive ring opening of pyrano[3,2-a]carbazole precursors leads to the prenylated and geranylated carbazole-1,4-quinone alkaloids murrayaquinone-B, -C, -D, and -E and to murrayafoline-B.

Synthesis of some carbazolequinone alkaloids and their analogues. Facile palladium-assisted intramolecular ring closure of arylamino-1,4-benzoquinones to carbazole-1,4-quinones

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