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Chapter 11: Q 11-11-20-P-c (page 347)

d) Tell whether each of the following reactions is likely to be SN1, SN2, E1, E1cB or E2:

Short Answer

Expert verified

The given reaction is an E1cBreaction

Step by step solution

01

E1cB reaction

An E1cBreaction is a type of elimination reaction that requires basic conditions.The leaving group is a relatively poor one, and the hydrogen to be removed is somewhat acidic.

02

Whether the reaction is SN1, SN2, E1, E1cB or E2

d) The given reaction occurs by an E1cB mechanism because the leaving group is present at two carbons away from the carbonyl functional group.

An E1cB reaction

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Most popular questions from this chapter

Question: 1-Chloro-1,2-diphenylethane can undergo E2 elimination to give either cis- or trans-1,2-diphenylethylene (stilbene). Draw Newman projections of the reactive conformations leading to both possible products, and suggest a reason why the trans alkene is the major product.

The reaction of HBr with (R)-3-methyl-3-hexanol leads to racemic 3-Bromo-3-methyl hexane. Explain.

Question: Predict the product and give the stereochemistry resulting from reaction of each of the following nucleophiles with (R)-2-bromooctane:

a) CN-

Which reactant in each of the following pairs is more nucleophilic? Explain.

F)C≡N-or-OCH3

What product would you expect to obtain from SN2 reaction of OH-with (R)-2-bromobutane? Show the stereochemistry of both the reactant and product.
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