From the given sequence of reactions, the structure of the compounds A to F have to be identified. Concept introduction: Reaction of alkenes with aqueous acid forms alcohol. Hydroboration of terminal alkynes follows anti-Markonikov rule. Ozonylsis of alkyne followed by work up with dimethyl sulfide forms aldehyde .

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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 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 6, Problem 89P

Interpretation Introduction

Interpretation:

From the given sequence of reactions, the structure of the compounds A to F have to be identified.

Concept introduction:

Reaction of alkenes with aqueous acid forms alcohol.

Hydroboration of terminal alkynes follows anti-Markonikov rule.

Ozonylsis of alkyne followed by work up with dimethyl sulfide forms aldehyde.

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A is a compound with molecular formula of C6H10, contains three methylene units. A react with one equivalent of H2 over Pd/C to yield B. A reacts with aqueous acid to form a single product, C. A also undergoes hydroboration/ oxidation to form product D. Ozonolysis of A followed by reaction of dimethylsulfide form E with molecular formula C6H10O2. A react with bromine in dichloromethane form F with molecular formula of C6H10Br2. Draw the reaction scheme for all the reaction mentioned above and suggest structure for A – F.

An optically active monoterpene (compound A) with molecular formula C10H18O undergoes catalytic hydrogenation to form an optically inactive compound with molecular formula C10H20O (compound B). When compound B is heated with acid, followed by reaction with O3 and then with dimethyl sulfide, one of the products obtained is 4-methylcyclohexanone. Give possible structures for compounds A and B.

Compound A (C7H11Br) is treated with magnesium in ether to give B (C7H11MgBr) which reacts violently with D2O to give 1-methylcyclohexene with a deuterium atom on the methyl group (C). Reaction of B with acetone (Ch3COCH3) followed by hydrolysis gives D (C10H18O). Heating D with concentrated H2SO4 gives E (C10H16), which reacts with 2 equivalents of Br2 to give F (C10H16Br4). E undergoes hydrogenation with excess H2 and Pt catalyst to give 2-methylpropylcyclohexane. Determine the structures of compounds A through F, and show your reasoning throughout.

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 6, Problem 89P

Interpretation Introduction

Interpretation:

From the given sequence of reactions, the structure of the compounds A to F have to be identified.

Concept introduction:

Reaction of alkenes with aqueous acid forms alcohol.

Hydroboration of terminal alkynes follows anti-Markonikov rule.

Ozonylsis of alkyne followed by work up with dimethyl sulfide forms aldehyde.

Expert Solution & Answer

Want to see the full answer?

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 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 6, Problem 89P

Interpretation Introduction

Interpretation:

From the given sequence of reactions, the structure of the compounds A to F have to be identified.

Concept introduction:

Reaction of alkenes with aqueous acid forms alcohol.

Hydroboration of terminal alkynes follows anti-Markonikov rule.

Ozonylsis of alkyne followed by work up with dimethyl sulfide forms aldehyde.

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 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 6, Problem 89P

Interpretation Introduction