858-60-6

Basic information

• Product Name: 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one
• Synonyms: 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one
• CAS NO: 858-60-6
• Molecular Weight: 350.417
• Mol File: 858-60-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one(858-60-6)
• EPA Substance Registry System: 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one(858-60-6)

Safety Data

• Hazardous Substances Data: 858-60-6(Hazardous Substances Data)

Upstream product

• 711-79-5 1-hydroxy-2-acetonaphthone 
• 90-96-0 bis(p-methoxyphenyl)methanone 
• 218432-79-2 3,4-dihydro-2,2-bis(4-methoxyphenyl)-2H-naphtho<1,2-b>pyran-4-ol acetate 
• 218432-78-1 2,3-dihydro-2,2-bis(4-methoxyphenyl)naphtho<1,2-b>pyran-4-one 
• 218432-75-8 2,2-bis(4-methoxyphenyl)-2H-naphtho<1,2-b>pyran 
• 218432-77-0 3,4-dihydro-2,2-diphenyl-4-<2,2-bis(4-methoxyphenyl)vinyl>-2H-naphtho<1,2-b>pyran 

Downstream Products

• 1175647-72-9 ethyl (2,2-diphenyl-4-hydroxy-3,4-dihydro-2H-naphtho[1,2-b]pyran-4-yl)acetate 
• 909-55-7 2-(1-oxo-3,3-diphenylprop-2-enyl)-1-naphthol 

Relevant articles and documents

Reactions between some 6-Halogeno-2,2-dimethyl-, 2,2,6-Trimethyl- and 2,2-Diaryl-2H-naphthopyrans and 1,1-Diphenylethene

6-Halogeno-2,2-dimethyl- and 2,2,6-trimethyl-2H-naphthopyrans reacted with 1,1-diphenylethene in acidic solution to give 6-halogeno-3,4-dihydro-2,2-dimethyl- and 3,4-dihydro-2,2,6-trimethyl-4-(2,2-diphenylvinyl)-2H-naphthopyrans, respectively, along with their corresponding dimers. However, the reaction between 2,2-diaryl-2H-naphthopyrans and 1,1-diphenylethene, under identical conditions, yielded 4-(2,2-diarylvinyl)-3,4-dihydro-2,2-diphenyl-2H-napthopyrans, by a different mechanism involving ring opening of the pyran ring.