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benzene reaction
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Citron009
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can we consider bromination of benzene is an example of test for unsaturation? (bromine decolorise..)
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charco
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(Original post by Citron009)
can we consider bromination of benzene is an example of test for unsaturation? (bromine decolorise..)
can we consider bromination of benzene is an example of test for unsaturation? (bromine decolorise..)
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ChemistryWebsite
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No, there will be no reaction with just benzene and bromine. It is necessary to have FeBr3 present as catalyst. Without the catalyst bromine will not form a strong enough electrphile.
This is because the unsaturated nature of benzene is very different to the unsaturated nature of an alkene.
Therefore benzene will not cause discolouration of bromine water.
This is because the unsaturated nature of benzene is very different to the unsaturated nature of an alkene.
Therefore benzene will not cause discolouration of bromine water.
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C_Yap
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Benzene is less reactive due to the delocalised right of electrons, meaning that it's unable to undergo electrophilic addition reactions with bromine water.
Electrophilic addition disrupts the delocalised ring, which reduces the stability of the molecule. This is why benzene does not tend to undergo addition reactions.
Electrophilic addition disrupts the delocalised ring, which reduces the stability of the molecule. This is why benzene does not tend to undergo addition reactions.
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Citron009
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#5
ok..thank you for your response,
Br-Br bond breaking, so shall we write bromine decolorise as an observation..?
Br-Br bond breaking, so shall we write bromine decolorise as an observation..?
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