Given that terminal alkynes react with bromine and water to yield bromoketones. A mechanism for the reaction is to be proposed. To what reaction of alkenes this reaction is analogous is also to be stated. Concept introduction: Addition of bromine to alkynes occurs through the formation of a cyclic bromonium ion intermediate. Water being nucleophilic, if present will attack the bromonium ion to yield an enol. The enol will then tautomerize to a ketone . Thus in thr product a bromine and a hydroxyl group are added to the triple bond. This reaction is similar to the addition of halohydrins to alkenes. To propose: A mechanism for the reaction in which ethynylbenzene reacts with bromine and water to yield a bromoketone is to be proposed. Further to state to what reaction of alkenes this reaction resembles.

Question

10 5 4. These four 'H NMR spectra were recorded from different isomers with molecular formula CsH,CIO. They all contain a carbonyl group. Determine the structure of the different isomers. 0 10 5 0 10 5 10 9 8 7 6 5 4 3. 1 0 9 10 10 66 9 0 10 9 10 5 1 8 7 6 5 3 2 -a 8 7 6 5 1 10 9 8 7 6 5 22 2 1 0 3 2 16 1 0 3 2 1 2 6 0

Answer 1

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 9.SE, Problem 29AP

Interpretation Introduction

Interpretation:

Given that terminal alkynes react with bromine and water to yield bromoketones. A mechanism for the reaction is to be proposed. To what reaction of alkenes this reaction is analogous is also to be stated.

Concept introduction:

Addition of bromine to alkynes occurs through the formation of a cyclic bromonium ion intermediate. Water being nucleophilic, if present will attack the bromonium ion to yield an enol. The enol will then tautomerize to a ketone. Thus in thr product a bromine and a hydroxyl group are added to the triple bond. This reaction is similar to the addition of halohydrins to alkenes.

To propose:

A mechanism for the reaction in which ethynylbenzene reacts with bromine and water to yield a bromoketone is to be proposed. Further to state to what reaction of alkenes this reaction resembles.

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10 5 4. These four 'H NMR spectra were recorded from different isomers with molecular formula CsH,CIO. They all contain a carbonyl group. Determine the structure of the different isomers. 0 10 5 0 10 5 10 9 8 7 6 5 4 3. 1 0 9 10 10 66 9 0 10 9 10 5 1 8 7 6 5 3 2 -a 8 7 6 5 1 10 9 8 7 6 5 22 2 1 0 3 2 16 1 0 3 2 1 2 6 0

Use the expression below to ⚫ calculate its value and report it to the proper number of significant digits (you may need to round your answer). ⚫ calculate the % error (or % relative error or % inherent error) ⚫ calculate the absolute error. (20.54±0.02 × 0.254±0.003) / (3.21±0.05) = Value: % Error: Absolute error: ± | % (only 1 significant digit) (only 1 significant digit)

In each case (more ductile, more brittle, more tough or resistant), indicate which parameter has a larger value. parameter Elastic limit Tensile strength more ductile Strain at break Strength Elastic modulus more fragile more tough or resistant

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 9.SE, Problem 29AP

Interpretation Introduction

Interpretation:

Given that terminal alkynes react with bromine and water to yield bromoketones. A mechanism for the reaction is to be proposed. To what reaction of alkenes this reaction is analogous is also to be stated.

Concept introduction:

Addition of bromine to alkynes occurs through the formation of a cyclic bromonium ion intermediate. Water being nucleophilic, if present will attack the bromonium ion to yield an enol. The enol will then tautomerize to a ketone. Thus in thr product a bromine and a hydroxyl group are added to the triple bond. This reaction is similar to the addition of halohydrins to alkenes.

To propose:

A mechanism for the reaction in which ethynylbenzene reacts with bromine and water to yield a bromoketone is to be proposed. Further to state to what reaction of alkenes this reaction resembles.

Expert Solution & Answer

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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 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 9.SE, Problem 29AP

Interpretation Introduction

Interpretation:

Given that terminal alkynes react with bromine and water to yield bromoketones. A mechanism for the reaction is to be proposed. To what reaction of alkenes this reaction is analogous is also to be stated.

Concept introduction:

Addition of bromine to alkynes occurs through the formation of a cyclic bromonium ion intermediate. Water being nucleophilic, if present will attack the bromonium ion to yield an enol. The enol will then tautomerize to a ketone. Thus in thr product a bromine and a hydroxyl group are added to the triple bond. This reaction is similar to the addition of halohydrins to alkenes.

To propose:

A mechanism for the reaction in which ethynylbenzene reacts with bromine and water to yield a bromoketone is to be proposed. Further to state to what reaction of alkenes this reaction resembles.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

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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 9.SE, Problem 29AP

Interpretation Introduction