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Chapter 8: Q.18 (page 317)

Draw the major E2 elimination products from each of the following alkyl halides.

a.

b.

Short Answer

Expert verified

The major E2 products from the alkyl halides are shown below:

Step by step solution

01

Types of different β hydrogens

The different types of βhydrogens give different types of products.

Representation of beta Hydrogens

02

Anti-periplanar position

The leaving group and βhydrogen must be trans to each other(anti-periplanar position). The elimination reaction will take place in those where anti-periplanar orientation is maintained.

Representation of anti-periplanar orientation

03

Elimination products

Hence, the major E2 products from the alkyl halides are shown below:

Elimination product from a

By maintaining the anti-periplanar geometry, only one possible product is obtained.

Elimination product from b

Only one possible product is obtained while maintaining the anti-periplanar geometry.

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Most popular questions from this chapter

What is the major product formed when each alkyl halide is treated with each of the following reagents: [1] NaOCOCH3 ; [2] NaOCH3; [3]KOC(CH3)3? If it is not possible to predict the major product, identify the products in the mixture and the mechanism by which each is formed.

a.

b.

c.

Taking into account anti periplanar geometry, predict the major E2 product formed from each starting material.

a.

b.

Which alkene in each pair is more stable?

a.

b.

c.

Label each pair of alkenes as constitutional isomers, stereoisomers, or identical.

a.

b.

c.

d.

Draw the alkynes formed when each dihalide is treated with excess base.

a.

b.

c.

d.
See all solutions

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