5 Questions
In the synthesis of p-bromonitrobenzene from benzene, which reagent is used to introduce the bromine substituent?
Br2 Fe Br HNO3 H2SO4
When two similar o,p-directing groups are present, why is substitution at the ortho position hindered?
80% yield
In the case of conflicting directing effects of two groups, which effect generally predominates if one group is much more strongly activating than the other?
The more powerful activating group
Why is the benzylic hydroxy group unusually reactive in many situations?
Resonance structures of benzyl cation
What is the reason for the greater reactivities of benzylic halides compared to non-benzylic alkyl halides?
Stabilities of the carbocation intermediates formed
Test your knowledge of electrophilic aromatic substitution and organic synthesis with this quiz. Questions cover topics such as the synthesis of p-bromonitrobenzene from benzene, directing groups, and hindered substitution.
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