Question: Show the products you expect when each compound reacts with NBS with light shining on the reaction.

a)

Short Answer

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a)The product formed from the above compound when react with NBS

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

Step 2:

First, the reagent N-bromosuccinimide (NBS) that produces the bromine radical Br undergoes radical formation.

03

Step 3:

An allylic free radical is the end product of the formation of free radical in the alkene. The proposed mechanism to explain the observed products in the described reaction between an alkene and NBS.

The product contains two identical allylic groups, each of which is present. Thus, with a highly stable radical, there is no rearrangement. As a result, the reaction between the supplies alkene and NBS.

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Most popular questions from this chapter

Question: A carboxylic acid has two oxygen atoms, each with two nonbonding pairs of electrons.

  1. Draw the resonance forms of a carboxylic acid that is protonated on the hydroxy oxygen atom.
  2. Compare the resonance forms with those given previously for an acid protonated on the carbonyl oxygen atom.
  3. Explain why the carbonyl oxygen atom of a carboxylic acid is more basic than the hydroxy oxygen.

Most of the Fischer esterification mechanism is identical with the mechanism of acetal formation. The difference is in the final step, where a resonance-stabilized carbocation loses a proton to give the ester. Write mechanisms for the following reactions, with the comparable steps directly above and below each other. Explain why the final step of the esterification (proton loss) cannot occur in acetal formation, and show what happens instead.

Show how to synthesize the following compounds, using appropriate carboxylic acids and amines.

(a)

(b)

(c)

There are three dioxane isomers: 1,2-dioxane, 1,3- dioxane, and 1,4-dioxane. One of these acts like an ether and is an excellent solven for Grignard reactions. Another one is potentially explosive when heated. The third one quickly hydrolyzes in dilute acid. Show which isomer acts like a simple ether, and then explain why one of them is potentially explosive. Propose a mechanism for the acid hydrolysis of the third isomer.

Question:

  1. Determine the structure of the carboxylic acid whose proton NMR spectrum appears below.
  2. Draw the NMR spectrum you would expect from the corresponding aldehyde whose oxidation gives this carboxylic acid.
  3. Point out two distinctive differences in the spectra of the aldehyde and the acid.

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