52508-48-2

Basic information

• Product Name: 2H,5H-Pyrano[3,2-c][1]benzopyran-5-one, 3,4-dihydro-2-hydroxy-2-methyl-4-phenyl-, trans-
• CAS NO: 52508-48-2
• Molecular Formula: C19H16O4
• Molecular Weight: 308.334
• Mol File: 52508-48-2.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 2H,5H-Pyrano[3,2-c][1]benzopyran-5-one, 3,4-dihydro-2-hydroxy-2-methyl-4-phenyl-, trans-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H,5H-Pyrano[3,2-c][1]benzopyran-5-one, 3,4-dihydro-2-hydroxy-2-methyl-4-phenyl-, trans-(52508-48-2)
• EPA Substance Registry System: 2H,5H-Pyrano[3,2-c][1]benzopyran-5-one, 3,4-dihydro-2-hydroxy-2-methyl-4-phenyl-, trans-(52508-48-2)

Safety Data

• Hazardous Substances Data: 52508-48-2(Hazardous Substances Data)

Upstream product

• 1896-62-4 (E)-benzalacetone 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 116-11-0 2-Methoxypropene 
• 100-52-7 benzaldehyde 
• 518-20-7 pyranocoumarin 
• 122-57-6 1-Phenylbut-1-en-3-one 

Downstream Products

• 90361-81-2 (2S,4S)-2-Hydroxymethyl-2-methyl-4-phenyl-3,4-dihydro-2H-pyrano[2,3-b]chromen-5-one 

Relevant articles and documents

A library of pyranocoumarin derivatives via a one-pot three-component hetero Diels-Alder reaction [1]

A hetero Diels-Alder reaction with inverse electron demand between 4-hydroxycoumarin, aromatic alde, hydes and electron-rich alkenes yielded a multitude of 2,4-disubstituted 3,4-dihydropyranocoumarins. This route opened an easy access to coumarin anticoagulants and provided a library of pyranocoumarin derivatives.

STUDIES ON THE CONDENSATION PRODUCTS OF SOME α, β -UNSATURATED CARBONYL COMPOUNDS WITH 4-HYDROXYCOUMARIN

The base catalysed condensation products of mesityl oxide and benzalacetone with 4-hydroxycoumarin have been studied.The reported structures (III) and (IX) of two condesation products are revised as (V) and (X) respectively.Chemicxal transformations of (V