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Chapter 16: PROBLEM 16.39 (page 635)

Question: Label each pair of compounds as stereoisomers or conformations.

a.

b.

c.

Short Answer

Expert verified

Answer

a. Conformational isomers

b. Conformational isomers

c. Stereoisomers

Step by step solution

01

Stereoisomers

Compounds that have similar molecular formula but differ in their orientation in the 3D space are termed stereoisomers.

02

Conformational isomerism

Conformational isomers are a type of stereoisomers where the spatial arrangement of the atoms can be interchanged by rotation along a single bond.

03

Determination of stereoisomers and conformers

a.

Conformational isomers

Both are E-isomers; hence it can be said that they have different conformations.

b.

Conformational isomers

c. Both are Z-isomers; hence it can be said that they have different conformations.

Stereoisomers

Since one of the isomers is E and the other is Z, they can be termed stereoisomers.

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Most popular questions from this chapter

Question: What diene and dienophile are needed to prepare each product?

a.

b.

c.

Question. Determine the hybridization of the labelled atom in each species.

a.

b.

c.

Question: Devise a synthesis of X from the given starting materials. You may use any organic or inorganic reagents. Account for the stereochemistry observed in X.

Question: Draw the products of the following Diels–Alder reactions. Indicate stereochemistry where appropriate.

a.

b.

c.

d.

Question: a. Draw the two isomeric dienes formed when CH2=CHCH2CHClCHCH32is treated with an alkoxide base.

b. Explain why the major product formed in this reaction does not contain the more highly substituted alkene.

See all solutions

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