1071596-80-9

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 6-(acetyloxy)-
• Synonyms: 4H-1-Benzopyran-4-one, 6-(acetyloxy)-
• CAS NO: 1071596-80-9
• Molecular Formula: C11H8O4
• Molecular Weight: 204.17882
• Mol File: 1071596-80-9.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 6-(acetyloxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 6-(acetyloxy)-(1071596-80-9)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 6-(acetyloxy)-(1071596-80-9)

Safety Data

• Hazardous Substances Data: 1071596-80-9(Hazardous Substances Data)

Upstream product

• 59887-88-6 6-methoxy-chromen-4-one 
• 108-24-7 acetic anhydride 

Relevant articles and documents

A Facile Enantioselective Alkynylation of Chromones

The first catalytic enantioselective alkynylation of chromones is reported. In this process, chromones are silylated to form silyloxybenzopyrylium ions that lead to silyl enol ethers after Cu-catalyzed alkyne addition using StackPhos as a ligand. The outcome of the reaction is impacted by distal ligand substituents with differing electronic character and it was found that successful reactions could be achieved with different ligand congeners by using different solvents. This sequence enables access to different products by protonation or further functionalization, thus increasing complexity in a divergent manner. The transformation is high yielding over a broad scope to provide a variety of useful chromanones in high enantioselectivity.