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Electrophilic Substitution Reaction... Understanding the mechanism So I am havin

ID: 844773 • Letter: E

Question

Electrophilic Substitution Reaction... Understanding the mechanism

So I am having trouble getting my head around these reaction mechanisms!!!!
Can someone clarify what I am thinking and give me some answers to fill in the blanks.

1. H+ is the electrophile - It is electron loving - It needs electrons. So when it collides with the benzene ring it breaks one of the pi bonds to take away the electrons and leaves a sigma bond

2. As a result of the H+ nabbing the electrons it makes a carbo cation, a positively charged carbon. The positively charged carbon is always the one with the most substituents. Due to Markovnikovs rule.

3. H2O a nucleophile is attacted to the carbocation (+ and - attract) therefore it bonds the carbon.

From here I am confused as to why a H leaves and why it is still positive after the H2O attaches? Please give me an explanation in laymans terms! Also am I correct with my steps before this point?

Explanation / Answer

thats my answer you have posted here. final product mentioned in red colour. H+ is a catalyst in this reaction, so t the end of the reaction mechanism it has to leave as such as it came. all other points you quoted are correct.

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