76444-60-5

Basic information

• Product Name: Methanone,[5,7-dihydroxy-2,2-dimethyl-8-(3- methyl-2-butenyl)-2H-1-benzopyran-6-yl]- phenyl-
• Synonyms: [5,7-Dihydroxy-2,2-dimethyl-8-(3-methyl-but-2-enyl)-2H-chromen-6-yl]-phenyl-methanone;Vismiaphenone-B;vismiaphenone B
• CAS NO: 76444-60-5
• Molecular Formula: C23H24O4
• Molecular Weight: 364.441
• Mol File: 76444-60-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Methanone,[5,7-dihydroxy-2,2-dimethyl-8-(3- methyl-2-butenyl)-2H-1-benzopyran-6-yl]- phenyl- (CAS DataBase Reference)
• NIST Chemistry Reference: Methanone,[5,7-dihydroxy-2,2-dimethyl-8-(3- methyl-2-butenyl)-2H-1-benzopyran-6-yl]- phenyl- (76444-60-5)
• EPA Substance Registry System: Methanone,[5,7-dihydroxy-2,2-dimethyl-8-(3- methyl-2-butenyl)-2H-1-benzopyran-6-yl]- phenyl- (76444-60-5)

Safety Data

• Hazardous Substances Data: 76444-60-5(Hazardous Substances Data)

Upstream product

• 3770-80-7 2,4,6-trimethoxybenzophenone 
• 98-88-4 benzoyl chloride 
• 70219-84-0 phenyl(2,4,6-trihydroxy-3,5-bis(3-methylbut-2-en-1-yl)-phenyl)methanone 
• 621-23-8 1,2,3-trimethoxybenzene 
• 3555-86-0 2-benzoylphloroglucinol 
• 115-18-4 2-methyl-3-buten-2-ol 

Downstream Products

• 88662-01-5 6-benzoyl-5-hydroxy-2,2,8,8-tetramethyl-2H,8H-benzo(1,2-b:3',4'-b')dipyran 

Relevant articles and documents

Synthesis of Vismiaphenone-B: A Naturally Occurring Prenylated Benzophenone

Vismiaphenone-B, 5-C-prenyl-2,6-dihydroxy-6'',6''-dimethylchromenobenzophenone (II), has been synthesised starting from 2,4,6-trihydroxybenzophenone (V).V on prenylation with prenyl bromide in the presence of methanolic sodium methoxide yields three products, viz. 3,5-di-C-prenyl-2,4,6-trihydroxybenzophenone (VI), 2,6-dihydroxy-4-O-prenylbenzophenone (VII) and a brown oil, which could not be characterised.VI on cyclodehydrogenation with DDQ affords II, identical in all respects (UV, IR and PMR) with a natural sample.