
(a)
Interpretation:
Reagents should be predicted for the given transformations.
Concept introduction:
Reagent: reagent is a compound or compound mixture that is used in the chemical transformation of the reactions. Reagents for some reactions are given below.
- Elimination reaction: in elimination reaction, two substituents are removed from the substrate to give the product in presence of base.
- Elimination of compound in presence of bulky base leads to less substituted
alkene , in presence of strong base (not bulky) leads to more substituted alkene. - Addition reaction: in addition reaction, two substituents are added to the reactant without losing any compound.
- Hydration: addition of water molecule across the double bond is called hydration reaction. Hydration of alkene can be achieved in many ways.
- Oxy mercuration-demercuration: this process undergoes through the addition of water according to Markovnikov’s rule without forming carbocation as intermediate.
- Hydroboration-oxidation reaction: addition of –H and –OH group across the double bond in presence of borane and hydrogen peroxide with base is known as hydroboration-oxidation reaction.
- Simple hydration in acidic media gives the addition product through carbocation intermediate.
- Hydro halogenation: hydrogen and halogen added across the double bond of the alkene in Markovnikov’s path is called hydro halogenation. This addition reaction proceeds via anti-Markovnikov’s path in presence of peroxides.
To find: the reagent for the given transformation.
(b)
Interpretation:
Reagents should be predicted for the given transformations.
Concept introduction:
Reagent: reagent is a compound or compound mixture that is used in the chemical transformation of the reactions. Reagents for some reactions are given below.
- Elimination reaction: in elimination reaction, two substituents are removed from the substrate to give the product in presence of base.
- Elimination of compound in presence of bulky base leads to less substituted alkene, in presence of strong base (not bulky) leads to more substituted alkene.
- Addition reaction: in addition reaction, two substituents are added to the reactant without losing any compound.
- Hydration: addition of water molecule across the double bond is called hydration reaction. Hydration of alkene can be achieved in many ways.
- Oxy mercuration-demercuration: this process undergoes through the addition of water according to Markovnikov’s rule without forming carbocation as intermediate.
- Hydroboration-oxidation reaction: addition of –H and –OH group across the double bond in presence of borane and hydrogen peroxide with base is known as hydroboration-oxidation reaction.
- Simple hydration in acidic media gives the addition product through carbocation intermediate.
- Hydro halogenation: hydrogen and halogen added across the double bond of the alkene in Markovnikov’s path is called hydro halogenation. This addition reaction proceeds via anti-Markovnikov’s path in presence of peroxides.
To find: the reagent for the given transformation.
(c)
Interpretation:
Reagents should be predicted for the given transformations.
Concept introduction:
Reagent: reagent is a compound or compound mixture that is used in the chemical transformation of the reactions. Reagents for some reactions are given below.
- Elimination reaction: in elimination reaction, two substituents are removed from the substrate to give the product in presence of base.
- Elimination of compound in presence of bulky base leads to less substituted alkene, in presence of strong base (not bulky) leads to more substituted alkene.
- Addition reaction: in addition reaction, two substituents are added to the reactant without losing any compound.
- Hydration: addition of water molecule across the double bond is called hydration reaction. Hydration of alkene can be achieved in many ways.
- Oxy mercuration-demercuration: this process undergoes through the addition of water according to Markovnikov’s rule without forming carbocation as intermediate.
- Hydroboration-oxidation reaction: addition of –H and –OH group across the double bond in presence of borane and hydrogen peroxide with base is known as hydroboration-oxidation reaction.
- Simple hydration in acidic media gives the addition product through carbocation intermediate.
- Hydro halogenation: hydrogen and halogen added across the double bond of the alkene in Markovnikov’s path is called hydro halogenation. This addition reaction proceeds via anti-Markovnikov’s path in presence of peroxides.
To find: the reagent for the given transformation.
(d)
Interpretation:
Reagents should be predicted for the given transformations.
Concept introduction:
Reagent: reagent is a compound or compound mixture that is used in the chemical transformation of the reactions. Reagents for some reactions are given below.
- Elimination reaction: in elimination reaction, two substituents are removed from the substrate to give the product in presence of base.
- Elimination of compound in presence of bulky base leads to less substituted alkene, in presence of strong base (not bulky) leads to more substituted alkene.
- Addition reaction: in addition reaction, two substituents are added to the reactant without losing any compound.
- Hydration: addition of water molecule across the double bond is called hydration reaction. Hydration of alkene can be achieved in many ways.
- Oxy mercuration-demercuration: this process undergoes through the addition of water according to Markovnikov’s rule without forming carbocation as intermediate.
- Hydroboration-oxidation reaction: addition of –H and –OH group across the double bond in presence of borane and hydrogen peroxide with base is known as hydroboration-oxidation reaction.
- Simple hydration in acidic media gives the addition product through carbocation intermediate.
- Hydro halogenation: hydrogen and halogen added across the double bond of the alkene in Markovnikov’s path is called hydro halogenation. This addition reaction proceeds via anti-Markovnikov’s path in presence of peroxides.
To find: the reagent for the given transformation.

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Chapter 8 Solutions
Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy
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