90992-14-6

Basic information

• Product Name: 1H-2-Benzopyran-1-one, 3,4-dihydro-4-(phenylmethylene)-, (E)-
• CAS NO: 90992-14-6
• Molecular Formula: C16H12O2
• Molecular Weight: 236.27
• Mol File: 90992-14-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1H-2-Benzopyran-1-one, 3,4-dihydro-4-(phenylmethylene)-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-2-Benzopyran-1-one, 3,4-dihydro-4-(phenylmethylene)-, (E)-(90992-14-6)
• EPA Substance Registry System: 1H-2-Benzopyran-1-one, 3,4-dihydro-4-(phenylmethylene)-, (E)-(90992-14-6)

Safety Data

• Hazardous Substances Data: 90992-14-6(Hazardous Substances Data)

Upstream product

• 2327-99-3 1-phenylpropadiene 
• 65-85-0 benzoic acid 

Relevant articles and documents

SYNTHESIS OF ISOCOUMARINS VIA THALLATION-OLEFINATION OF BENZOIC ACIDS

Benzoic acid and substituted benzoic acids are readily thallated by thallium(III) trifluoroacetate and subsequently reacted with palladium chloride and simple olefins, allylic halides, vinyl halides, or vinyl esters to give isocoumarins.The organic halide reactions are catalytic in palladium. 1,2- and 1,3-dienes also react catalytically to afford 4-alkylidene- and 3-vinyl-3,4-dihydroisocoumarins, respectively.Vinylcyclopropanes also afford 3-vinyl-3,4-dihydroisocoumarins.This highly convenient thallation-olefination approach appears quite general for the synthesis of isocoumarins.