119274-35-0

Basic information

• Product Name: 3-Bromo-4,6-dimethyl-4-phenyl-3,4-dihydro-pyran-2-one
• CAS NO: 119274-35-0
• Molecular Weight: 281.149
• Mol File: 119274-35-0.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3-Bromo-4,6-dimethyl-4-phenyl-3,4-dihydro-pyran-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Bromo-4,6-dimethyl-4-phenyl-3,4-dihydro-pyran-2-one(119274-35-0)
• EPA Substance Registry System: 3-Bromo-4,6-dimethyl-4-phenyl-3,4-dihydro-pyran-2-one(119274-35-0)

Safety Data

• Hazardous Substances Data: 119274-35-0(Hazardous Substances Data)

Upstream product

• 114143-90-7 2-<(tert-butyldimethylsilyl)oxy>-4,6-dimethylpyrylium trifluoromethanesulfonate 
• 675-09-2 4,6-Dimethyl-2-pyron 
• 119972-62-2 tert-Butyl-(4,6-dimethyl-4-phenyl-4H-pyran-2-yloxy)-dimethyl-silane 

Downstream Products

• 119274-45-2 4,6-dimethyl-3-phenylpyran-2-one 

Relevant articles and documents

Synthesis of 3,4-Disubstituted 3,4-Dihydro-2-pyrones via 2-(Silyloxy)pyrylium Salts: Regioselective Introduction of Substituents into 2-Pyrones

Silylation of 4,6-dimethyl- and 6-methyl-2-pyrone with tert-butyldimethylsilyl triflate affords the corresponding 2-(silyloxy)pyrylium triflates 2 quantitatively.Lithium diorganocuprates add regioselectively at position 4 of triflates 2 to give 4-substituted 2-(silyloxy)-4H-pyrans 4.Compounds 4 react with electrophiles at position 3 to give 3-bromo- (8), 3-(silyloxy)- (9), 3-methylene- (15), and 3-(1-hydroxybutyl)-3,4-dihydro-2-pyrones (16).