Why would an epoxide be a poor choice as a protecting group for aldehyde or ketones is to be explained. Concept introduction: The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. A good protecting group is the one which is unreactive under the desired reaction condition and can be removable under another set of reaction condition.

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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, Problem 19.49P

Interpretation Introduction

Interpretation:

Why would an epoxide be a poor choice as a protecting group for aldehyde or ketones is to be explained.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. A good protecting group is the one which is unreactive under the desired reaction condition and can be removable under another set of reaction condition.

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In the presence of excess base and excess halogen, a methyl ketone is converted to a carboxylate ion. The reaction is known as the haloform reaction because one of the products is haloform (chloroform, bromoform, or iodoform). Before spectroscopy became a routine analytical tool, the haloform reaction served as a test for methyl ketones: the formation of iodoform, a bright yellow compound, signaled that a methyl ketone was present. Why do only methyl ketones form a haloform?

Two methods convert an alkyl halide to a carboxylic acid having one more carbon atom. Depending on the structure of the alkyl halide, one or both of these methods may be employed. For each alkyl halide, write out a stepwise sequence that converts it to a carboxylic acid with one more carbon atom. If both methods work, draw both routes. If one method cannot be used, state why it can't.

Two methods convert an alkyl halide to a carboxylic acid having onemore carbon atom. Depending on the structure of the alkyl halide, one or both of thesemethods may be employed. For each alkyl halide, write out a stepwisesequence that converts it to a carboxylic acid with one more carbonatom. If both methods work, draw both routes. If one method cannot be used, state why it can't.

Answer 2

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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, Problem 19.49P

Interpretation Introduction

Interpretation:

Why would an epoxide be a poor choice as a protecting group for aldehyde or ketones is to be explained.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. A good protecting group is the one which is unreactive under the desired reaction condition and can be removable under another set of reaction condition.

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Answer 3

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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, Problem 19.49P

Interpretation Introduction

Interpretation:

Why would an epoxide be a poor choice as a protecting group for aldehyde or ketones is to be explained.

Concept introduction:

The protecting groups are used to make the specific functional group temporarily unreactive in a poly-functional group molecule under reaction conditions needed to make modifications in other functional group in the molecule. A good protecting group is the one which is unreactive under the desired reaction condition and can be removable under another set of reaction condition.

Expert Solution & Answer

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Check out a sample textbook solution

See 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, Problem 19.49P

Interpretation Introduction