Please help with practice problem a) You realize that the easiest way to alkylate a benzene ring isto use a Friedel-Crafts alkylation reaction. When you attemptthis reaction, however, you end up getting an isomer, calledisobutylbenzene. Explain, by writing the complete mechanism,why you obtained isobutylbenzene by a Friedel-Craftsalkylation reaction.b) Actually, when you attempted the above reaction, youobtained a lot of a product called 1,2,4-triisobutylbenzene. Canyou explain why this product was formed, based on yourunderstanding of benzene chemistry?c) Finally, what is the preferred synthesis for 1-butylbenzenefrom benzene? Show the steps below.

In the friedel craft alkylation alkyl group substitution occurs on Benzene ring

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Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter15: Radical Reactions

Section: Chapter Questions

Problem 12E

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Question

Please help with practice problem

a) You realize that the easiest way to alkylate a benzene ring is
to use a Friedel-Crafts alkylation reaction. When you attempt
this reaction, however, you end up getting an isomer, called
isobutylbenzene. Explain, by writing the complete mechanism,
why you obtained isobutylbenzene by a Friedel-Crafts
alkylation reaction.
b) Actually, when you attempted the above reaction, you
obtained a lot of a product called 1,2,4-triisobutylbenzene. Can
you explain why this product was formed, based on your
understanding of benzene chemistry?
c) Finally, what is the preferred synthesis for 1-butylbenzene
from benzene? Show the steps below.

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