Chapter 16, Problem 16.51P

Interpretation Introduction

(a)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 1

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 2

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 2.

Interpretation Introduction

(b)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 3

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 4

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 4.

Interpretation Introduction

(c)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 5

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 6

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 6.

Interpretation Introduction

(d)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 7

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 8

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 8.

Interpretation Introduction

(e)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 9

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 10

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 10.

Interpretation Introduction

(f)

Interpretation: The diene and dienophile that are needed to prepare given product is to be stated.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Answer to Problem 16.51P

The diene and dienophile that are needed to prepare given product is shown below.

Explanation of Solution

The given product is shown below.

Figure 11

Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The dienophile adds to one side of the diene, and diene adds to the one side of the dienophile. Thus, they have syn stereochemistry.

Retro synthesis can be carried out to identify the diene and dienophile for the given product.

Therefore, the diene and dienophile that are needed to prepare given product is shown below.

Figure 12

Conclusion

The diene and dienophile that are needed to prepare given product are shown in Figure 12.