The mechanism for the formation of o-(hydroxymethyl)benzoic acid when o-phthalaldehyde is treated with a base is to be proposed. Concept introduction: The Cannizzaro reaction takes place by nucleophilic addition of OH - to an aldehyde to give a tetrahedral intermediate, which expels a hydride ion and is thereby oxidized. A second aldehyde group, either within the same intermediate or from another molecule, accepts the hydride ion and thus gets reduced to an alcohol. To propose: The mechanism for the formation of o-(hydroxymethyl) benzoic acid when o-phthalaldehyde is treated with a base.

Question

8. Draw all the resonance forms for each of the fling molecules or ions, and indicate the major contributor in each case, or if they are equivalent (45) (2) -PH2 سمة مد

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.12, Problem 18P

Interpretation Introduction

Interpretation:

The mechanism for the formation of o-(hydroxymethyl)benzoic acid when o-phthalaldehyde is treated with a base is to be proposed.

Concept introduction:

The Cannizzaro reaction takes place by nucleophilic addition of OH^- to an aldehyde to give a tetrahedral intermediate, which expels a hydride ion and is thereby oxidized. A second aldehyde group, either within the same intermediate or from another molecule, accepts the hydride ion and thus gets reduced to an alcohol.

To propose:

The mechanism for the formation of o-(hydroxymethyl) benzoic acid when o-phthalaldehyde is treated with a base.

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8. Draw all the resonance forms for each of the fling molecules or ions, and indicate the major contributor in each case, or if they are equivalent (45) (2) -PH2 سمة مد

A J то گای ه +0 Also calculate the amount of starting materials chlorobenzaldehyde and p-chloroacetophenone required to prepare 400 mg of the given chalcone product 1, 3-bis(4-chlorophenyl)prop-2-en-1-one molar mass ok 1,3-bis(4-Chlorophenyl) prop-2-en-1-one = 277.1591m01 number of moles= 0.400/277.15 = 0.00144 moles 2 x 0.00 144=0.00288 moves arams of acetophenone = 0.00144 X 120.16 = 0.1739 0.1739x2=0.3469 grams of benzaldehyde = 0.00144X106.12=0.1539 0.1539x2 = 0.3069 Starting materials: 0.3469 Ox acetophenone, 0.3069 of benzaldehyde 3

1. Answer the questions about the following reaction: (a) Draw in the arrows that can be used make this reaction occur and draw in the product of substitution in this reaction. Be sure to include any relevant stereochemistry in the product structure. + SK F Br + (b) In which solvent would this reaction proceed the fastest (Circle one) Methanol Acetone (c) Imagine that you are working for a chemical company and it was your job to perform a similar reaction to the one above, with the exception of the S atom in this reaction being replaced by an O atom. During the reaction, you observe the formation of three separate molecules instead of the single molecule obtained above. What is the likeliest other products that are formed? Draw them in the box provided.

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.12, Problem 18P

Interpretation Introduction

Interpretation:

The mechanism for the formation of o-(hydroxymethyl)benzoic acid when o-phthalaldehyde is treated with a base is to be proposed.

Concept introduction:

The Cannizzaro reaction takes place by nucleophilic addition of OH^- to an aldehyde to give a tetrahedral intermediate, which expels a hydride ion and is thereby oxidized. A second aldehyde group, either within the same intermediate or from another molecule, accepts the hydride ion and thus gets reduced to an alcohol.

To propose:

The mechanism for the formation of o-(hydroxymethyl) benzoic acid when o-phthalaldehyde is treated with a base.

Expert Solution & Answer

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See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.12, Problem 18P

Interpretation Introduction

Interpretation:

The mechanism for the formation of o-(hydroxymethyl)benzoic acid when o-phthalaldehyde is treated with a base is to be proposed.

Concept introduction:

The Cannizzaro reaction takes place by nucleophilic addition of OH^- to an aldehyde to give a tetrahedral intermediate, which expels a hydride ion and is thereby oxidized. A second aldehyde group, either within the same intermediate or from another molecule, accepts the hydride ion and thus gets reduced to an alcohol.

To propose:

The mechanism for the formation of o-(hydroxymethyl) benzoic acid when o-phthalaldehyde is treated with a base.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.12, Problem 18P

Interpretation Introduction