查看完整版本 : Benzene Reactions and Mechanisms (Sebalter- Better Not)

Add H2 with Ni 

Cyclohexane will form

Add O2, burn in air

CO2, H2O formed

Heat reflux with Br2

AlBr3 is catalyst

Bromobenzene HBr products formed

Nitric sulphuric acids with latter as catalyst

Warming with benzene together

50 60 degrees gets nitrobenzene

Too low slow reaction, too high more nitro




Friedel Crafts reactions

Polar compound, catalyst 

Anhydrous stops water

We have 2 substitution

HCl formed both reactions

Both with AlCl3 catalyst

RX alkylbenzene RCOX phenylethanone

Both are substitution 

Of group before X

Fuming H2SO4 at 40 degrees

H by SO3H, it’s sulfonation




Common mechanism

Forms an electrophile

From reactant, catalyst 

And attacks ring

Ring electron rich delocalised electron attracts

Forms no aroma intermediate 

Then the H attacks back

Generates the catalyst back

It’s electrophilic substitution 




Pi bond attracts two electrons, forms covalent bond

Intermediate has plus charge

Ooh, ooh

Here we have reactions of this benzene

Ooh

All of this benzene