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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

SN2 reactions take place with inversion of configuration, andSN1 reactions take place with racemization. The following substitution reaction, however, occurs with complete retention of configuration. Propose a mechanism.

.

Question: The reactions shown below are unlikely to occur as written. Tell what is wrong with each, and predict the actual product.

a.

Write the product you would expect from reaction of each of the following alkyl halides with (1)Na+-SCH3and (2)Na+-OH (green = Cl):

c)

What stereochemistry do you expect for the trisubstituted alkene obtained by E2 elimination of the following alkyl halide on treatment with KOH? (Reddish brown = Br.)

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

b) H2O or CH3CO2-
See all solutions

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