90778-41-9

Basic information

• Product Name: 2H-1-Benzopyran-2-one, 3,4-dihydro-6-methyl-4-pentyl-
• CAS NO: 90778-41-9
• Molecular Formula: C15H20O2
• Molecular Weight: 232.323
• Mol File: 90778-41-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2H-1-Benzopyran-2-one, 3,4-dihydro-6-methyl-4-pentyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-1-Benzopyran-2-one, 3,4-dihydro-6-methyl-4-pentyl-(90778-41-9)
• EPA Substance Registry System: 2H-1-Benzopyran-2-one, 3,4-dihydro-6-methyl-4-pentyl-(90778-41-9)

Safety Data

• Hazardous Substances Data: 90778-41-9(Hazardous Substances Data)

Upstream product

• 92-48-8 6-methylcoumarin 
• 23708-48-7 pentamethylenebis(magnesium bromide) 

Relevant articles and documents

ADDITION CONJUGUEE DES α,ω-bis(BROMOMAGNESIO)ALCANES SUR LES COUMARINES

Reactions of 1,4-bis(bromomagnesio)butane and 1,5-bis(bromomagnesio)pentane with coumarin and 6-methylcoumarin gave a mixture of 1-(o-hydroxystyryl)cycloalkanol and 4-alkyl-3,4-dihydrocoumarin.A large difference in product distribution was observed between the two bifunctional reagents.Annelation was favored by the use of 1,4-bis(bromomagnesio)butane, whereas conjugate addition was observed with 1,5-bis(bromomagnesio)pentane and even in the use of 4-methylcoumarin.