1279109-19-1

Basic information

• Product Name: 4-methoxy-3-(3,4,5-trimethoxyphenyl)ethynylcoumarin
• Synonyms: 4-methoxy-3-(3,4,5-trimethoxyphenyl)ethynylcoumarin
• CAS NO: 1279109-19-1
• Molecular Weight: 366.37
• Mol File: 1279109-19-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-methoxy-3-(3,4,5-trimethoxyphenyl)ethynylcoumarin(CAS DataBase Reference)
• NIST Chemistry Reference: 4-methoxy-3-(3,4,5-trimethoxyphenyl)ethynylcoumarin(1279109-19-1)
• EPA Substance Registry System: 4-methoxy-3-(3,4,5-trimethoxyphenyl)ethynylcoumarin(1279109-19-1)

Safety Data

• Hazardous Substances Data: 1279109-19-1(Hazardous Substances Data)

Upstream product

• 20280-81-3 4-methoxycoumarin 
• 53560-33-1 3,4,5-trimethoxyphenylacetylene 
• 115152-06-2 3-iodo-4-methoxycoumarin 

Downstream Products

• 1279109-09-9 3-iodo-2-(3,4,5-trimethoxy)phenyl-4H-furo[2,3-b]benzopyran-4-one 
• 74-88-4 methyl iodide 

Relevant articles and documents

Iodocyclization versus diiodination in the reaction of 3-alkynyl-4- methoxycoumarins with iodine: Synthesis of 3-iodofuro[2,3-b]chromones

The reaction of 3-alkynyl-4-methoxycoumarins with molecular iodine in chlorinated solvents allows access to 3-iodofurochromones in good to excellent yields as the result of a iodocyclization-demethylation process. Competitive diiodination of the coumarin acetylene moiety could be eliminated by simply performing the reactions in refluxing 1,2-dichloroethane, owing to the thermal instability of the resulting (E)-1,2-diiodoethenylcoumarins. The Royal Society of Chemistry 2011.