a b с d (SN1) (E1) (E2) (SN2) OH Br

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Chapter1: Chemical Foundations
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For each compound, draw an akyl handle that can be used to produce it by the indicated mechanism. Show the organic starting material and reagens needed.

The image illustrates four different organic reactions, each labeled with a letter (a, b, c, d) and showcasing different mechanistic pathways.

**a. SN1 Reaction:**
- The diagram shows a secondary alkyl halide undergoing an SN1 reaction to form an alcohol.
- The starting material is a cyclohexane ring with an iodine substituent (I) and a reaction arrow indicating the formation of a cyclohexanol.

**b. E1 Reaction:**
- The diagram depicts an E1 elimination reaction.
- The starting material is a secondary alkyl halide, with the reaction resulting in the formation of an alkene.
- It shows a cyclohexane ring with a single methyl substituent added through elimination.

**c. E2 Reaction:**
- The diagram represents an E2 elimination reaction.
- The starting material is similar to the E1 example, but in this mechanism, the elimination occurs in one concerted step.
- The product is again an alkene on a cyclohexane ring, similar to the one in part b.

**d. SN2 Reaction:**
- The diagram depicts an SN2 substitution reaction.
- The starting material is a bromocyclopentane with a reaction arrow leading to the formation of another cyclohexane derivative.
- The change involves the substitution of the bromine substituent by another group through the backside attack characteristic of SN2 reactions.

These diagrams provide visual representations of common reaction mechanisms in organic chemistry, all involving changes in the cycloalkane substrates.
Transcribed Image Text:The image illustrates four different organic reactions, each labeled with a letter (a, b, c, d) and showcasing different mechanistic pathways. **a. SN1 Reaction:** - The diagram shows a secondary alkyl halide undergoing an SN1 reaction to form an alcohol. - The starting material is a cyclohexane ring with an iodine substituent (I) and a reaction arrow indicating the formation of a cyclohexanol. **b. E1 Reaction:** - The diagram depicts an E1 elimination reaction. - The starting material is a secondary alkyl halide, with the reaction resulting in the formation of an alkene. - It shows a cyclohexane ring with a single methyl substituent added through elimination. **c. E2 Reaction:** - The diagram represents an E2 elimination reaction. - The starting material is similar to the E1 example, but in this mechanism, the elimination occurs in one concerted step. - The product is again an alkene on a cyclohexane ring, similar to the one in part b. **d. SN2 Reaction:** - The diagram depicts an SN2 substitution reaction. - The starting material is a bromocyclopentane with a reaction arrow leading to the formation of another cyclohexane derivative. - The change involves the substitution of the bromine substituent by another group through the backside attack characteristic of SN2 reactions. These diagrams provide visual representations of common reaction mechanisms in organic chemistry, all involving changes in the cycloalkane substrates.
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