Clemmensen Reduction
Interactive Video
•
Engineering, Biology, Chemistry, Science
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Professor Dave explains Clemmensen Reduction, a reaction that converts ketones to alkanes using amalgamated zinc in hydrochloric acid. The mechanism is disputed, with two main hypotheses. A key application is in Friedel-Crafts chemistry, where Clemmensen Reduction helps achieve straight-chain alkyl groups on benzene rings. The process involves a two-step sequence: Friedel-Crafts acylation followed by Clemmensen Reduction. This method avoids carbocation rearrangement issues seen in alkylation.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain why Friedel-Crafts alkylation may not work as intended when trying to attach a straight-chain alkyl group to a benzene ring.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the two-step process to achieve the desired alkyl group on a benzene ring using Clemmensen reduction?
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