a) Interpretation: How to synthesize butanal from 1-pentyne is to be shown. Concept introduction: Alkynes can be converted in to the corresponding alkenes by treating with H 2 in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms. To show: How to synthesize butanal from 1-pentyne.

Question

Want to see the full answer?

Answer 1

Question

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Part 2 (0.5 point) 0- Draw the major organic product with the correct geometry. 10 1: 70000 х く 1st attempt Part 1 (0.5 point) Feedback Please draw all four bonds at chiral centers. P See Periodic Table See Hint

Heating an alcohol in the presence of sulfuric or phosphoric acid will cause a dehydration to occur: the removal of the elements of water from a molecule, forming an alkene. The reaction usually follows an E1 mechanism. The SN1 pathway is suppressed by using a strong acid whose conjugate base is a poor nucleophile. Further, heating the reaction mixture causes a greater increase in the rate of E1 compared to the rate of S№1. 2nd attempt 0 See Periodic Table See Hint Draw the organic intermediate from the first step (no byproducts) and draw curved arrow(s) to show how it reacts. TH +11: 1st attempt Feedback H H H C F F See Periodic Table See Hint

This molecule undergoes an E1 mechanism when stirred in methanol. 3rd attempt CH₂OH CH₂OH 6148 O See Periodic Table. See Hint Draw 3 chemical species including formal charges and lone pairs of electrons. Add the missing curved arrow notation. H N O O SA 3 Br I

Answer 2

Question

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Answer 6

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Answer 7

Chapter 9.SE, Problem 38AP

Interpretation Introduction

a)

Interpretation:

How to synthesize butanal from 1-pentyne is to be shown.

Concept introduction:

Alkynes can be converted in to the corresponding alkenes by treating with H₂ in the presence of Lindlar catalyst. The alkene produced upon ozonolysis followed by treatment with Zn and acetic acid yields an aldehyde with lesser number of carbon atoms.

To show:

How to synthesize butanal from 1-pentyne.

Answer 8

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Answer 9

Interpretation Introduction

b)

Interpretation:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne is to be shown.

Concept introduction:

Higher alkynes can be prepared first by converting the lower alkyne in to an alkynide by reacting with NaNH₂ in liquid NH₃ followed by the reaction of the alkynide with alkyl halide containing the required number of carbon atoms. The higher alkyne thus obtained upon treatment with Li in liquid NH₃ will get reduced to yield a trans alkene as the product.

To show:

How to synthesize trans- 6-methyl-3 heptene from 4-methyl-1-pentyne.

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 13

Ch. 9.1 - Prob. 1P Ch. 9.1 - Prob. 2P Ch. 9.3 - What products would you expect from the following...Ch. 9.4 - Prob. 4P Ch. 9.4 - Prob. 5P Ch. 9.4 - Prob. 6P Ch. 9.4 - Prob. 7P Ch. 9.5 - Using any alkyne needed, how would you prepare the...Ch. 9.7 - The pKa of acetone, CH3COCH3, is 19.3. Which of...Ch. 9.8 - Prob. 10P

Want to see the full answer?

Chapter 9 Solutions