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Chapter 12: PROBLEM 12.3 (page 458)

Question: Draw all alkenes that react with one equivalent of H2 in the presence of a palladium catalyst to form each alkane. Consider constitutional isomers only

a.

b.

c.

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

H2 Palladium catalyst

H2Palladium catalyst is a solid catalyst used in the hydrogenation reaction of alkenes.

The reactant and the catalyst are in different phases; therefore, the reaction is termed heterogeneous catalysis.

02

Formation of alkanes from alkenes

Alkenes undergo a reduction reaction using a hydrogen palladium catalyst and form alkane.

The unsaturated carbon-carbon double bond is reduced to a saturated carbon-carbon single bond.

03

Reaction of alkenes in the presence of H2  palladium catalyst

Constitutional isomers of alkenes can result in the formation of identical alkanes.

a.


Formation of isopentane

from constitution isomer of 3-methyl-butene

b.

Formation of 1,1-dimethylcyclohexane

from constitutional isomers of dimethyl cyclohexene

c.

Formation of 1,1-dimethylcyclohexane

from constitutional isomers of dimethyl cyclohexene

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Most popular questions from this chapter

Question: Draw the products formed when both cis- and trans-but-2-ene are treated with a peroxyacid followed by 鈥� OH (in H2O ). Explain how these reactions illustrate that anti-dihydroxylation is stereospecific.

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