Erythrogenic acid, C 18 H 26 O 2 , an acetylenic fatty acid turns vivid red on exposure to light. It absorbs 5 equivalents of H 2 in the presence of Pd to give stearic acid, CH 3 (CH 2 ) 16 COOH.Upon ozonolysis it gives formaldehyde, CH 2 O; oxalic acid, HOOCCOOH; azelaic acid, HOOC(CH 2 ) 7 COOH; and an aldehydic acid OHC(CH 2 ) 4 COOH. From these data, two possible structures for Erythrogenic acid are to be given. A way to distinguish these two structures is also to be given. Concept introduction: Both alkenes and alkynes yield alkanes by adsorbing H 2 in the presence of Pd catalyst. Alkynes require two equivalents of H 2 while alkenes require one equivalent of H 2 to give alkanes. Upon ozonolysis a monosubstituted carbon in double bond gives an aldehyde , a carbon in terminal double bond gives formaldehyde and carbons in triple bond yield carboxylic acids as products. To give: Two possible structures for erythrogenic acid from the data provided and a way to distinguish these two structures given.

Question

Isoerythrogenic acid, C18H26O2, is a acetylic fatty acid that turns vivid vle on exposure to UV light. On Catalytic hydrogenation over a palladium catalyst, five molar equivalents of hydrogen are absorbed, and stearic acid

Answer 1

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 9.SE, Problem 53AP

Interpretation Introduction

Interpretation:

Erythrogenic acid, C₁₈H₂₆O₂, an acetylenic fatty acid turns vivid red on exposure to light. It absorbs 5 equivalents of H₂ in the presence of Pd to give stearic acid, CH₃(CH₂)₁₆COOH.Upon ozonolysis it gives formaldehyde, CH₂O; oxalic acid, HOOCCOOH; azelaic acid, HOOC(CH₂)₇COOH; and an aldehydic acid OHC(CH₂)₄COOH. From these data, two possible structures for Erythrogenic acid are to be given. A way to distinguish these two structures is also to be given.

Concept introduction:

Both alkenes and alkynes yield alkanes by adsorbing H₂ in the presence of Pd catalyst. Alkynes require two equivalents of H₂ while alkenes require one equivalent of H₂ to give alkanes. Upon ozonolysis a monosubstituted carbon in double bond gives an aldehyde, a carbon in terminal double bond gives formaldehyde and carbons in triple bond yield carboxylic acids as products.

To give:

Two possible structures for erythrogenic acid from the data provided and a way to distinguish these two structures given.

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Isoerythrogenic acid, C18H26O2, is a acetylic fatty acid that turns vivid vle on exposure to UV light. On Catalytic hydrogenation over a palladium catalyst, five molar equivalents of hydrogen are absorbed, and stearic acid

4. Compound A has the formula C 8H 8. It reacts rapidly with KMnO 4 to give CO 2 and a carboxylic acid, B (C 7H 6O 2), but reacts with only 1 molar equivalent of H 2 on catalytic hydrogenation over a palladium catalyst. On hydrogenation under conditions that reduce aromatic rings, 4, equivalents of H 2 are taken up and hydrocarbon C (C 8H 16) is produced. What are the structures of A, B, and C.

Myristoleic acid, C14H26O2, yields myristic acid on catalytic hydrogenation and undergoes oxidative cleavage with ozone to yield pentanoic acid and nonanedioic acid. Draw the structure of Myristoleic acid.

Answer 2

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 9.SE, Problem 53AP

Interpretation Introduction

Interpretation:

Erythrogenic acid, C₁₈H₂₆O₂, an acetylenic fatty acid turns vivid red on exposure to light. It absorbs 5 equivalents of H₂ in the presence of Pd to give stearic acid, CH₃(CH₂)₁₆COOH.Upon ozonolysis it gives formaldehyde, CH₂O; oxalic acid, HOOCCOOH; azelaic acid, HOOC(CH₂)₇COOH; and an aldehydic acid OHC(CH₂)₄COOH. From these data, two possible structures for Erythrogenic acid are to be given. A way to distinguish these two structures is also to be given.

Concept introduction:

Both alkenes and alkynes yield alkanes by adsorbing H₂ in the presence of Pd catalyst. Alkynes require two equivalents of H₂ while alkenes require one equivalent of H₂ to give alkanes. Upon ozonolysis a monosubstituted carbon in double bond gives an aldehyde, a carbon in terminal double bond gives formaldehyde and carbons in triple bond yield carboxylic acids as products.

To give:

Two possible structures for erythrogenic acid from the data provided and a way to distinguish these two structures given.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook 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 9.SE, Problem 53AP

Interpretation Introduction

Interpretation:

Erythrogenic acid, C₁₈H₂₆O₂, an acetylenic fatty acid turns vivid red on exposure to light. It absorbs 5 equivalents of H₂ in the presence of Pd to give stearic acid, CH₃(CH₂)₁₆COOH.Upon ozonolysis it gives formaldehyde, CH₂O; oxalic acid, HOOCCOOH; azelaic acid, HOOC(CH₂)₇COOH; and an aldehydic acid OHC(CH₂)₄COOH. From these data, two possible structures for Erythrogenic acid are to be given. A way to distinguish these two structures is also to be given.

Concept introduction:

Both alkenes and alkynes yield alkanes by adsorbing H₂ in the presence of Pd catalyst. Alkynes require two equivalents of H₂ while alkenes require one equivalent of H₂ to give alkanes. Upon ozonolysis a monosubstituted carbon in double bond gives an aldehyde, a carbon in terminal double bond gives formaldehyde and carbons in triple bond yield carboxylic acids as products.

To give:

Two possible structures for erythrogenic acid from the data provided and a way to distinguish these two structures given.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook 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 9.SE, Problem 53AP

Interpretation Introduction