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Why electrophilic substitution reaction occur at 2 and 5 position in furan?
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∙ 10y ago
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∙ 10y ago
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Why furan do not show nucleophilic subtitution reaction?
Hi I m confused that in simple furan why it do not show nucleophilic subtitution reaction. while in subtituted furan show it.
Why do 5-membered ring aromatic heterocycles pyrrole and furan undergo electrophilic substitution more rapidly than benzene while 6-membered ring heterocycles like pyridine are less reactive than Benz?
pyridine is less reactive than benzene because when we form its conjugate base then it'll b more stable than dat of benzene.. so more stabler means less reactive.......and also due to more resonance in benzene it will b more reactive...same 4 furan and pyrrole
Do Furan behave as diene in diel alder reaction?
Yes, They have a conjugated double bonds that will react with a dienophile
How is furan produced from pentose?
It is made on industrial scale by treating pentose with heat and a strong acid (like sulfuric acid). This leads to formation of furane-2-carbaldehyde. The aldehyde can be removed by reaction with zinc oxide @ 400 degrees C, giving unsubstituted furan.
What is the basicity of furan?
furan though has a lone pair of electron which is not delocalised but due to high electronegetivity of oxygen it is not a available for donation hence has weak basic proerty
What is basicity of furan?
furan though has a lone pair of electron which is not delocalised but due to high electronegetivity of oxygen it is not a available for donation hence has weak basic proerty
Why is furan insoluble in ether?
Because it has 2 double bonds. An ether might not have any double or triple bonds!
What is the molar mass of furan?
68.08 grams/mole
Do Furan is weak base Or strong base?
weak
What has the author Thomas F Terbilcox written?
Thomas F. Terbilcox has written: 'Formaldehyde modified lignosulfonate extenders for furan systems' -- subject(s): Furan resins
Is furfaral an acid?
No. It is an aldehyde. Furfural is furan-2-carboxaldehyde.
What is a benzofuran?
A benzofurane is another term for a benzofuran - any of a class of bicyclic heterocycles consisting of a benzene ring fused with one of furan.
