(a) Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated. Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

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Answer 1

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Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

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Metathesis reactions can be carried out with two different alkene substrates in one reaction mixture. Depending on the substitution pattern around the C=C, the reaction may lead to one major product or a mixture of many products. For each pair of alkene substrates, draw all metathesis products formed. (Disregard any starting materials that may also be present at equilibrium.) With reference to the three examples, discuss when alkene metathesis with two different alkenes is a synthetically useful reaction.

Metathesis reactions can be carried out with two different alkene substrates in one reaction mixture. Depending on the substitution pattern around the C= C, the reaction may lead to one major product or a mixture of many products. For each pair of alkene substrates, draw all metathesis products formed. (Disregard any starting materials that may also be present at equilibrium.) With reference to the three examples, discuss when alkene metathesis with two different alkenes is a synthetically useful reaction. a. CH;CH2CH=CH2 b. C. CH,CH,CH,CH=CH,

Using Zaitsev's rule, choose the most stable alkene among the following. Draw out the structures of each of the options then select the correct answer. Recall that Zaitsev's Rule is about alkene stability. The trend for this is similar to the trend for carbocation stability. Either more or fewer groups on the alkene (and the carbocation) make it more stable. This question is wanting you to remember if it's more or fewer. A) 1,2-dimethylcyclohexene B) 1,6-dimethylcyclohexene C) cis-3,4-dimethylcyclohexene D) They are all of equal stability according to Zaitsev's rule. Provide the major dehydration product of the following reaction. Recall which of the four substitution and elimination reactions a dehydration is. Before you do your S# or EF mechanism, remember what heteroatoms do in the presence of an acid (aka-the-OH is a bad leaving group, but protonating it might turn it into a good one). Don't forget to apply the concept from the previous question. OH Ht A

Answer 2

Question

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

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Answer 3

Question

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

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Answer 4

Question

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

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Answer 5

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 6

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 7

Chapter 26, Problem 26.31P

Interpretation Introduction

(a)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 8

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 9

Interpretation Introduction

(b)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 10

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 11

Interpretation Introduction

(c)

Interpretation: The all metathesis products formed from the given alkene substrates are to be drawn, and an explanation that corresponds to the synthetic use of alkene metathesis reaction with two different alkenes is to be stated.

Concept introduction: Alkene metathesis generally known as olefin metathesis occurs in the presence of Grubbs catalyst. The overall reaction involves cleavage of two σ and two π bonds, and formation of two σ and two π bonds.

Answer 12

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Answer 15

Ch. 26 - Prob. 26.1P Ch. 26 - Prob. 26.2P Ch. 26 - Prob. 26.3P Ch. 26 - Prob. 26.4P Ch. 26 - Prob. 26.5P Ch. 26 - Prob. 26.6P Ch. 26 - Prob. 26.7P Ch. 26 - Problem 26.8 What starting materials are needed to...Ch. 26 - Prob. 26.9P Ch. 26 - Problem 26.10 What reagents are needed to convert...

Solution Summary: The author explains that olefin metathesis occurs in the presence of Grubbs catalyst and yields two different alkenes.

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Chapter 26 Solutions