Reagents to be used for synthesis of the given compound using Robinson annulation Concept introduction: Robinson annulation is used for synthesizing polycyclic compound, namely six membered ring. This method is used to convert ketone and an α , β -unsaturated ketone into a cyclohexanone ring in presence of strong base. The reaction involved in Robinson annulation is, Michael addition Aldol condensation. Robinson annulation is comprised of Michael reaction which is followed by intramolecular aldol condensation.

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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 21.6, Problem 41CC

Interpretation Introduction

Interpretation:

Reagents to be used for synthesis of the given compound using Robinson annulation

Concept introduction:

Robinson annulation is used for synthesizing polycyclic compound, namely six membered ring. This method is used to convert ketone and an α,β -unsaturated ketone into a cyclohexanone ring in presence of strong base. The reaction involved in Robinson annulation is,

Michael addition

Aldol condensation.

Robinson annulation is comprised of Michael reaction which is followed by intramolecular aldol condensation.

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• Part II. a) Elucidate The structure of compound c w/ molecular formula C10 11202 and the following data below: • IR spectra % TRANSMITTANCE 1002.5 90 80 70 60 50 40 30 20 10 0 4000 3600 3200 2800 2400 2000 1800 1600 • Information from 'HAMR MICRONS 8 9 10 11 14 15 16 19 25 1400 WAVENUMBERS (CM-1) 1200 1000 800 600 400 peak 8 ppm Integration multiplicity a 2.1 1.5 (3H) Singlet b 3.6 1 (2H) singlet с 3.8 1.5 (3H) Singlet d 6.8 1(2H) doublet 7.1 1(2H) doublet Information from 13C-nmR Normal carbon 29ppm Dept 135 Dept -90 + NO peak NO peak 50 ppm 55 ppm + NO peak 114 ppm t 126 ppm No peak NO peak 130 ppm t + 159 ppm No peak NO peak 207 ppm по реак NO peak

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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 21.6, Problem 41CC

Interpretation Introduction

Interpretation:

Reagents to be used for synthesis of the given compound using Robinson annulation

Concept introduction:

Robinson annulation is used for synthesizing polycyclic compound, namely six membered ring. This method is used to convert ketone and an α,β -unsaturated ketone into a cyclohexanone ring in presence of strong base. The reaction involved in Robinson annulation is,

Michael addition

Aldol condensation.

Robinson annulation is comprised of Michael reaction which is followed by intramolecular aldol condensation.

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Check out a sample textbook solution

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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 21.6, Problem 41CC

Interpretation Introduction

Interpretation:

Reagents to be used for synthesis of the given compound using Robinson annulation

Concept introduction:

Robinson annulation is used for synthesizing polycyclic compound, namely six membered ring. This method is used to convert ketone and an α,β -unsaturated ketone into a cyclohexanone ring in presence of strong base. The reaction involved in Robinson annulation is,

Michael addition

Aldol condensation.

Robinson annulation is comprised of Michael reaction which is followed by intramolecular aldol condensation.

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 21.6, Problem 41CC

Interpretation Introduction