5-Cholestane-3-one is to be prepared from cholesterol. How IR spectroscopy could be used to predict whether the reaction was successful is to be stated. The differences that could be observed in the IR spectrum of the starting material and the product are to be given. Concept introduction: In IR, the alcohols have a strong C-O adsorption near 1050 cm -1 and a characteristic O-H stretching adsorption around 3300 to 3600cm -1 . In hydrogen bonded alcohols this absorption occurs in the 3300cm -1 to 3400cm -1 . Aliphatic ketones and cyclohexanone give the characteristic carbonyl absorption band at 1715 cm -1 . To state: The use of IR spectroscopy in predicting whether the reaction ‘Conversion of cholestane-3-one to cholesterol’ was successful or not. To give: The differences that could be observed in the IR spectrum of cholesterol and 5-cholestane-3-one.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 17.11, Problem 18P

Interpretation Introduction

Interpretation:

5-Cholestane-3-one is to be prepared from cholesterol. How IR spectroscopy could be used to predict whether the reaction was successful is to be stated. The differences that could be observed in the IR spectrum of the starting material and the product are to be given.

Concept introduction:

In IR, the alcohols have a strong C-O adsorption near 1050 cm^-1 and a characteristic O-H stretching adsorption around 3300 to 3600cm^-1. In hydrogen bonded alcohols this absorption occurs in the 3300cm^-1 to 3400cm^-1.

Aliphatic ketones and cyclohexanone give the characteristic carbonyl absorption band at 1715 cm^-1.

To state:

The use of IR spectroscopy in predicting whether the reaction ‘Conversion of cholestane-3-one to cholesterol’ was successful or not.

To give:

The differences that could be observed in the IR spectrum of cholesterol and 5-cholestane-3-one.

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Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 17.11, Problem 18P

Interpretation Introduction

Interpretation:

5-Cholestane-3-one is to be prepared from cholesterol. How IR spectroscopy could be used to predict whether the reaction was successful is to be stated. The differences that could be observed in the IR spectrum of the starting material and the product are to be given.

Concept introduction:

In IR, the alcohols have a strong C-O adsorption near 1050 cm^-1 and a characteristic O-H stretching adsorption around 3300 to 3600cm^-1. In hydrogen bonded alcohols this absorption occurs in the 3300cm^-1 to 3400cm^-1.

Aliphatic ketones and cyclohexanone give the characteristic carbonyl absorption band at 1715 cm^-1.

To state:

The use of IR spectroscopy in predicting whether the reaction ‘Conversion of cholestane-3-one to cholesterol’ was successful or not.

To give:

The differences that could be observed in the IR spectrum of cholesterol and 5-cholestane-3-one.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 17.11, Problem 18P

Interpretation Introduction

Interpretation:

5-Cholestane-3-one is to be prepared from cholesterol. How IR spectroscopy could be used to predict whether the reaction was successful is to be stated. The differences that could be observed in the IR spectrum of the starting material and the product are to be given.

Concept introduction:

In IR, the alcohols have a strong C-O adsorption near 1050 cm^-1 and a characteristic O-H stretching adsorption around 3300 to 3600cm^-1. In hydrogen bonded alcohols this absorption occurs in the 3300cm^-1 to 3400cm^-1.

Aliphatic ketones and cyclohexanone give the characteristic carbonyl absorption band at 1715 cm^-1.

To state:

The use of IR spectroscopy in predicting whether the reaction ‘Conversion of cholestane-3-one to cholesterol’ was successful or not.

To give:

The differences that could be observed in the IR spectrum of cholesterol and 5-cholestane-3-one.

Expert Solution & Answer

Want to see the full answer?

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 ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 17.11, Problem 18P

Interpretation Introduction