Electrophilic Aromatic Substitution If you did not collect any data or are missi

Question

Electrophilic Aromatic Substitution

If you did not collect any data or are missing some data to complete this post-lab, then give your source of data here and give a brief explanation why you have missing data. If you use your own data you can go straight to question 1, no need to add anything here. 1. (2 pts.) When we talk about substituents being donating or withdrawing on a benzene ring, what is being donated or withdrawn? 2. (3 pts.) Of the following substituted benzenes, which would you EXPECT TO BE the most reactive towards electrophilic aromatic substitution? Give a brief EXPLANATION for your choice that includes the term activating and/or deactivating. EO: CH3 CH3 aniline anisole acetanilide 3. (2 pts.) Of the following substituted benzenes, which did you decide was the most reactive in electrophilic aromatic substitution based on your results and those of the other students in your lab? CH CH aniline anisole acetanilide 4. (4 pts.) Of the following substituted benzenes, HOW DID YOU DECIDE which was the most reactive in electrophilic aromatic substitution based on your results and those of the other students in your lab?

Explanation / Answer

1. While talking about effects of substituents we talk about donations or withdrawals of electrons by that substituent. So it is electrons donation or withdrawn.

2. While comparing reactivity toward electrophillic aromatic substitution. We compare activating or deactivating power of substituents. Higher the activating power i.e electrons donation by a particular group more would be reactivity towards EAS. Out of given compounds aniline would be most reactive due to highest activating influence of -NH2.

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