990-19-2

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 3,5,7-tris(acetyloxy)-2-[4-(acetyloxy)-3-methoxyphenyl]-
• CAS NO: 990-19-2
• Molecular Formula: C24H20O11
• Molecular Weight: 484.416
• Mol File: 990-19-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 3,5,7-tris(acetyloxy)-2-[4-(acetyloxy)-3-methoxyphenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 3,5,7-tris(acetyloxy)-2-[4-(acetyloxy)-3-methoxyphenyl]-(990-19-2)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 3,5,7-tris(acetyloxy)-2-[4-(acetyloxy)-3-methoxyphenyl]-(990-19-2)

Safety Data

• Hazardous Substances Data: 990-19-2(Hazardous Substances Data)

Upstream product

• 108-24-7 acetic anhydride 
• 480-19-3 isorhamnetin 

Downstream Products

• 1383545-62-7 2-(4-acetoxy-3-methoxyphenyl)-7-(2-methylbut-3-en-2-yloxy)-4-oxo-4H-chromene-3,5-diyl diacetate 
• 1383545-67-2 2-(4-acetoxy-3-methoxyphenyl)-8-(3-methylbut-2-enyl)-4-oxo-4H-chromene-3,5,7-triyl triacetate 
• 1383545-58-1 8-(3,3-dimethylallyl)isorhamnetin 
• 1383545-59-2 2-(4-acetoxy-3-methoxyphenyl)-7-hydroxy-4-oxo-4H-chromene-3,5-diyl diacetate 

Relevant articles and documents

An efficient method for C8-prenylation of flavonols and flavanones

Synthesis of C8-prenylated flavonols and flavanones via the palladium-catalyzed 7-O-1,1-dimethylprop-2-enylation, followed by Claisen rearrangement is described. Two regioselectivities (carbon-carbon bond formation at either the tail or head of the prenyl