1416573-11-9

Basic information

• Product Name: (1R,10bR)-1-ethyl-1-phenyl-4-p-tolyl-1,10b-dihydropyrano[3,4-c]chromene-2,5-dione
• Synonyms: (1R,10bR)-1-ethyl-1-phenyl-4-p-tolyl-1,10b-dihydropyrano[3,4-c]chromene-2,5-dione
• CAS NO: 1416573-11-9
• Molecular Weight: 410.469
• Mol File: 1416573-11-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (1R,10bR)-1-ethyl-1-phenyl-4-p-tolyl-1,10b-dihydropyrano[3,4-c]chromene-2,5-dione(CAS DataBase Reference)
• NIST Chemistry Reference: (1R,10bR)-1-ethyl-1-phenyl-4-p-tolyl-1,10b-dihydropyrano[3,4-c]chromene-2,5-dione(1416573-11-9)
• EPA Substance Registry System: (1R,10bR)-1-ethyl-1-phenyl-4-p-tolyl-1,10b-dihydropyrano[3,4-c]chromene-2,5-dione(1416573-11-9)

Safety Data

• Hazardous Substances Data: 1416573-11-9(Hazardous Substances Data)

Upstream product

• 20452-67-9 phenylethylketene 
• 82587-72-2 3-(4-methylbenzoyl)-2H-chromen-2-one 

Relevant articles and documents

N-heterocyclic carbene-catalyzed [4 + 2] cycloaddition of ketenes and 3-aroylcoumarins: Highly enantioselective synthesis of dihydrocoumarin-fused dihydropyranones

The N-heterocyclic carbene-catalyzed [4 + 2] cyclization of ketenes and 3-aroylcoumarins has been developed to give the corresponding dihydrocoumarin-fused multisubstituted dihydropyranones in high yield with good diastereoselectivity and high enantiosele