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Chapter 6: 57 P-b (page 331)

Question: Propose mechanisms to account for the observed products in the following reactions.

b)

Short Answer

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b)

Step by step solution

01

Step 1:

The bromination reaction is the process by which one or more bromine atoms are added to a chemical. Halogination reaction includes bromination reactions. N-bromosuccinimide, also known as NBS (sourse of Br), is employed in this reaction as a reagent to aid in radical substitution.

A free radical is a molecule that lacks charge and has an unpaired electron. Free radicals are extremely reactive substances with a brief shelf life.

02

b)

The reagent NBS, which produces a bromine radical as a result, first undergoes radical production. (Refer:971371-6-57P-a)

Following that, a free radical is formed in the alkene, producing an allylic free radical as a byproduct. The potential mechanism to explain the observed products in the described reaction between an alkene and NBS is presented.

03

Step 3:

The resonance of the allylic radical results in the formation of two products by the specified reactants. Due to the homoannular nature of the double bond, the product with the red shade is the main product.

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Most popular questions from this chapter

(b)In contrast, optically active butan-2-ol does not racemize on treatment with a solution of KOH. Explain why a reaction like that in part (a) does not occur.

For each of the following compounds,

  1. give the IUPAC name.
  2. give the common name (if possible).
  3. classify the compound as a methyl, primary, secondary, or tertiary halide.

Classify each compound as an alkyl halide, a vinyl halide, or an aryl halide.

(a) (CH3)3CF

(b) CH3CHCBrCH3

(c) CH3CF3

(d)

(e)

(f)

Question: Using cyclohexane as one of your starting materials, show how you would synthesize the following compounds.

Propose mechanisms to account for the observed products in the following reactions.
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