Applications of Benzo[c]Furans
Jan 25,2022
Physical Properties
The most stable 1,3-diphenylbenzo[c]furan is a yellow crystalline solid with an mp of 127°C. Its solution has a blue-green fluorescence. Mostly, unsubstituted benzo[c]furans have transient existence and are trapped in situ with dienophiles to give isolable cycloadducts.
Applications of Benzo[c]Furans
Benzo[c]furan derivatives have important luminescent and electroluminescent properties. Hexaphenylbenzo[c] furan has been incorporated into organic light-emitting diode devices. It has been used as a reagent of choice for trapping and characterizing transient alkenes and alkynes. Benzo[c]furan has also been used to quantitatively measure the rate of singlet oxygen generation in biological systems.
Synthesis
By Pyrolysis of Benzyne-Furan Cycloadducts The reduced benzyne-furan cycloadducts on flash vacuum pyrolysis at 600°C gave transient benzo[c]furan with elimination of ethane as a by-product.
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