30779-96-5

Basic information

• Product Name: 5-Methoxy-7-[(3-methyl-2-buten-1-yl)oxy]-2H-1-benzopyran-2-one
• Synonyms: 5-Methoxy-7-(3,3-dimethylallyloxy)coumarin;5-Methoxy-7-[(3-methyl-2-buten-1-yl)oxy]-2H-1-benzopyran-2-one;5-Methoxy-7- isoprenyloxycoumarin
• CAS NO: 30779-96-5
• Molecular Formula: C15H16O4
• Molecular Weight: 260.28514
• Mol File: 30779-96-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 427.3±45.0 °C(Predicted)
• Appearance: /
• Density: 1.159
• CAS DataBase Reference: 5-Methoxy-7-[(3-methyl-2-buten-1-yl)oxy]-2H-1-benzopyran-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Methoxy-7-[(3-methyl-2-buten-1-yl)oxy]-2H-1-benzopyran-2-one(30779-96-5)
• EPA Substance Registry System: 5-Methoxy-7-[(3-methyl-2-buten-1-yl)oxy]-2H-1-benzopyran-2-one(30779-96-5)

Safety Data

• Hazardous Substances Data: 30779-96-5(Hazardous Substances Data)

Upstream product

• 3067-10-5 7-hydroxy-5-methoxychromene-2-one 
• 556-82-1 3-methyl-2-buten-1-ol 

Relevant articles and documents

Mitsunobu coupling of 7-hydroxycoumarins with allylic and propargylic alcohols: A facile direct access to tertiary allyl coumarinyl ethers

Allylic and propargylic alcohols are coupled with 7-hydroxycoumarins under Mitsunobu conditions using diethyl azodicarboxylate (DEAD) and triphenylphosphine to afford the corresponding coumarinyl ethers without any rearrangement in good-to-acceptable yields. This route provides direct access to the 1,1-dimethylallyloxycoumarins which are key intermediates for the Claisen rearrangement-based synthesis of linear and angular coumarins.