Can methylbenzene react with bromine water?
If chlorine or bromine react with boiling methylbenzene in the absence of a catalyst but in the presence of UV light, substitution happens in the methyl group rather than the ring. However, the reaction doesn’t stop there, and all three hydrogens in the methyl group can in turn be replaced by chlorine atoms.
Does methylbenzene react with br2?
Electrophilic bromination occurs when methylbenzene is treated with bromine with lewis acid catalyst (often formed in situ by reaction of bromine with iron). The product is a mixture of ortho-, meta- and para-chloromethylbenzenes. Ortho- and para- isomers are major and meta-isomer is minor product.
What happens when benzene reacts with bromine water?
Benzene does not react with any electrophilic addition reactions hence it does undergo bromine water test, as they have delocalised pi bonds. Therefore, it does not decolourise the bromine water.
Does methylbenzene Decolourise bromine solution?
Benzene molecule is unsaturated but it does not undergo electrophillic addition reaction because saturating the carbon-carbon bonds destroys the delocalized pi-cloud and as we know that this delocalized pi-structure is very stable. So due to this benzene does not decolourises bromine water.
What reactions does methylbenzene undergo?
Methylbenzene is more reactive than benzene because of the tendency of the methyl group to “push” electrons towards the ring. The effect of this greater reactivity is that methylbenzene will react with fuming sulfuric acid at 0°C, and with concentrated sulfuric acid if they are heated under reflux for about 5 minutes.
What does Br2 and FeBr3 do?
The bromine molecule reacts with FeBr3 by donating a pair of its electrons to the Lewis acid, which creates a more polar Br-Br bond, and thus a more reactive electrophile. Benzene will now attack this electrophile to generate the sigma complex.
What type of reaction does methylbenzene undergo?
Chlorination of methylbenzene The nature of the product depends on the reaction conditions and the types of reaction mechanism. Chloromethylbenzene behaves as a normal (aliphatic) haloalkane. It readily undergoes nucleophilic substitution reactions, due to the polar bond.
What type of reaction occurs when benzene reacts with bromine?
The bromination of benzene is an example of an electrophilic aromatic substitution reaction. In this reaction, the electrophile (bromine) forms a sigma bond to the benzene ring, yielding an intermediate.
What is the structural formula of methylbenzene?
C7H8
Toluene/Formula
How is methylbenzene formed?
Benzene reacts at room temperature with a chloroalkane (for example, chloromethane or chloroethane) in the presence of aluminium chloride as a catalyst. On this page, we will look at substituting a methyl group, but any other alkyl group could be used in the same way. Substituting a methyl group gives methylbenzene.