33470-08-5

Basic information

• Product Name: ethyl 4-oxo-3-phenyl-4H-chromene-2-carboxylate
• Synonyms: ethyl 4-oxo-3-phenyl-4H-chromene-2-carboxylate
• CAS NO: 33470-08-5
• Molecular Weight: 294.307
• Mol File: 33470-08-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: ethyl 4-oxo-3-phenyl-4H-chromene-2-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl 4-oxo-3-phenyl-4H-chromene-2-carboxylate(33470-08-5)
• EPA Substance Registry System: ethyl 4-oxo-3-phenyl-4H-chromene-2-carboxylate(33470-08-5)

Safety Data

• Hazardous Substances Data: 33470-08-5(Hazardous Substances Data)

Upstream product

• 7622-77-7 2-Hydroxy-2-aethoxycarbonyl-2,3-dihydro-isoflavon 
• 1192031-31-4 ethoxycarbonylmethyl 2-(2'-phenylethynyl)phenyl ether 

Downstream Products

• 7622-78-8 4-oxo-3-phenyl-4H-1-benzopyran-2-carboxylic acid 

Relevant articles and documents

DBU-mediated regioselective intramolecular cyclization/dehydration of ortho diketo phenoxyethers: A synthesis of 2,3-substituted γ-benzopyranones

The regioselective cyclization/dehydration sequence of ortho diketo phenoxyethers induced by DBU has been explored. The results demonstrated a high degree of selectivity with preference for 6-exo-trig cyclization leading to the formation of γ-benzopyranone derivatives in good yield.