31678-73-6

Basic information

• Product Name: 2H-Pyran-2-one, 3-methyl-
• CAS NO: 31678-73-6
• Molecular Formula: C6H6O2
• Molecular Weight: 110.112
• Mol File: 31678-73-6.mol

Chemical Properties

• CAS DataBase Reference: 2H-Pyran-2-one, 3-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-Pyran-2-one, 3-methyl-(31678-73-6)
• EPA Substance Registry System: 2H-Pyran-2-one, 3-methyl-(31678-73-6)

Safety Data

• Hazardous Substances Data: 31678-73-6(Hazardous Substances Data)

Upstream product

• 19978-32-6 3-bromo-2H-pyran-2-one 
• 15681-48-8 lithium dimethylcuprate 
• 127588-05-0 exo-4,5-epoxy-endo-5-methyl-exo-10-oxatricyclo<5.2.1.0^2,6>deca-8-en-3-one 

Downstream Products

• 1356687-12-1 C₂₁H₂₇NO₅ 
• 63233-32-9 7-methyl-2-phenyl-(3at,7at)-tetrahydro-4r,7c-etheno-pyrano[3,4-c]pyrrole-1,3,6-trione 

Relevant articles and documents

AN ORGANOMETALLIC ROUTE TO (+/-)-3-p-TOLUENESULFINYL-2-PYRONE

3-Bromo-2-pyrone reacts with dimethylcopperlithium and then with p-tolyl p-toluenethiosulfonate to form 3-p-toluenethio-2-pyrone.Organocopper species are likely intermediates in this reaction.Oxidation of the sulfide produces (+/-)-3-p-toluenesulfinyl-2-pyrone.The overall process involves an important and useful umpolung, a reversal of reactivity at C(3) of the pyrone ring from an electrophilic center to a nucleophilic center.