Given an optically active alcohol, A has the molecular formula C 11 H 16 O. It does not adsorb any hydrogen during catalytic reduction in the presence of Pd. It gets dehydrated when treated with dilute sulphuric acid to yield an optically inactive alkene , B (C 11 H 14 ). The alkene B yields propanol, CH 3 CH 2 CHO and a ketone, C (C 8 H 8 O). The number of degrees of unsaturation in A is to be calculated. A, B and C are to be identified and the reactions are to be written. Concept introduction: The degree of unsaturation in a compound can be calculated by considering the molecular formula of the compound and its parent hydrocarbon. Any compound with a chiral centre will be optically active. Alcohols undergo dehydration when warmed with dilute sulphuric acid. During ozonolysis the double bond is cleaved to yield carbonyl compounds. If the doubly bonded carbon is disubstituted then ketones are produced and if the doubly bonded carbon is monoisubstituted then aldehydes are produced. To calculate: The number of degrees of unsaturation in compound A. To identify: The structures of compounds A, B and C. To write: The reactions given.

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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 8.SE, Problem 72AP

Interpretation Introduction

Interpretation:

Given an optically active alcohol, A has the molecular formula C₁₁H₁₆O. It does not adsorb any hydrogen during catalytic reduction in the presence of Pd. It gets dehydrated when treated with dilute sulphuric acid to yield an optically inactive alkene, B (C₁₁H₁₄). The alkene B yields propanol, CH₃CH₂CHO and a ketone, C (C₈H₈O). The number of degrees of unsaturation in A is to be calculated. A, B and C are to be identified and the reactions are to be written.

Concept introduction:

The degree of unsaturation in a compound can be calculated by considering the molecular formula of the compound and its parent hydrocarbon. Any compound with a chiral centre will be optically active. Alcohols undergo dehydration when warmed with dilute sulphuric acid. During ozonolysis the double bond is cleaved to yield carbonyl compounds. If the doubly bonded carbon is disubstituted then ketones are produced and if the doubly bonded carbon is monoisubstituted then aldehydes are produced.

To calculate:

The number of degrees of unsaturation in compound A.

To identify:

The structures of compounds A, B and C.

To write:

The reactions given.

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3. Titanium(III) chloride can be used to catalyze the polymerization of ethylene. It is prepared by hydrogen reduction of Titanium(IV) chloride. Reaction of hydrogen gas with titanium(IV) chloride gas produces solid titanium(III) chloride and hydrogen chloride gas. (a) Write a BALANCED chemical reaction for the preparation of titanium(III) chloride (b) A 250 L reaction vessel at 325°C is filled with hydrogen gas to a pressure of 1.3 atm. Titanium(IV) chloride is then added to bring the total pressure to 3.00 atm. How many grams of titanium(III) chloride will be produced after completion of the reaction? (c) What will be the pressure of the resulting hydrogen chloride gas that is also produced?

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 8.SE, Problem 72AP

Interpretation Introduction

Interpretation:

Given an optically active alcohol, A has the molecular formula C₁₁H₁₆O. It does not adsorb any hydrogen during catalytic reduction in the presence of Pd. It gets dehydrated when treated with dilute sulphuric acid to yield an optically inactive alkene, B (C₁₁H₁₄). The alkene B yields propanol, CH₃CH₂CHO and a ketone, C (C₈H₈O). The number of degrees of unsaturation in A is to be calculated. A, B and C are to be identified and the reactions are to be written.

Concept introduction:

The degree of unsaturation in a compound can be calculated by considering the molecular formula of the compound and its parent hydrocarbon. Any compound with a chiral centre will be optically active. Alcohols undergo dehydration when warmed with dilute sulphuric acid. During ozonolysis the double bond is cleaved to yield carbonyl compounds. If the doubly bonded carbon is disubstituted then ketones are produced and if the doubly bonded carbon is monoisubstituted then aldehydes are produced.

To calculate:

The number of degrees of unsaturation in compound A.

To identify:

The structures of compounds A, B and C.

To write:

The reactions given.

Expert Solution & Answer

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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 8.SE, Problem 72AP

Interpretation Introduction

Interpretation:

Given an optically active alcohol, A has the molecular formula C₁₁H₁₆O. It does not adsorb any hydrogen during catalytic reduction in the presence of Pd. It gets dehydrated when treated with dilute sulphuric acid to yield an optically inactive alkene, B (C₁₁H₁₄). The alkene B yields propanol, CH₃CH₂CHO and a ketone, C (C₈H₈O). The number of degrees of unsaturation in A is to be calculated. A, B and C are to be identified and the reactions are to be written.

Concept introduction:

The degree of unsaturation in a compound can be calculated by considering the molecular formula of the compound and its parent hydrocarbon. Any compound with a chiral centre will be optically active. Alcohols undergo dehydration when warmed with dilute sulphuric acid. During ozonolysis the double bond is cleaved to yield carbonyl compounds. If the doubly bonded carbon is disubstituted then ketones are produced and if the doubly bonded carbon is monoisubstituted then aldehydes are produced.

To calculate:

The number of degrees of unsaturation in compound A.

To identify:

The structures of compounds A, B and C.

To write:

The reactions 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 8.SE, Problem 72AP

Interpretation Introduction