218432-78-1

Basic information

• Product Name: 2,3-dihydro-2,2-bis(4-methoxyphenyl)naphtho<1,2-b>pyran-4-one
• CAS NO: 218432-78-1
• Molecular Weight: 410.469
• Mol File: 218432-78-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,3-dihydro-2,2-bis(4-methoxyphenyl)naphtho<1,2-b>pyran-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-dihydro-2,2-bis(4-methoxyphenyl)naphtho<1,2-b>pyran-4-one(218432-78-1)
• EPA Substance Registry System: 2,3-dihydro-2,2-bis(4-methoxyphenyl)naphtho<1,2-b>pyran-4-one(218432-78-1)

Safety Data

• Hazardous Substances Data: 218432-78-1(Hazardous Substances Data)

Upstream product

• 90-96-0 bis(p-methoxyphenyl)methanone 
• 711-79-5 1-hydroxy-2-acetonaphthone 

Downstream Products

• 218432-77-0 3,4-dihydro-2,2-diphenyl-4-<2,2-bis(4-methoxyphenyl)vinyl>-2H-naphtho<1,2-b>pyran 
• 218432-79-2 3,4-dihydro-2,2-bis(4-methoxyphenyl)-2H-naphtho<1,2-b>pyran-4-ol acetate 
• 218432-75-8 2,2-bis(4-methoxyphenyl)-2H-naphtho<1,2-b>pyran 
• 858-60-6 3,4-dihydro-2,2-diphenyl-2H-naphtho<1,2-b>pyran-4-one 

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.