(a) Interpretation: The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified. Concept Introduction: The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

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Answer 1

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Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

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5. Ribose's structure is ОН HO ОН ОН a) Draw using the arrow formalism the reaction of linear ribose to make a 5-membered ring. b) What is the name of the resulting functional group? c) Given that reaction of alcohols (such as RCH2OH) with carbonyls (such as HCO-R') to create this functional group is typically not thermodynamically favored, why does most ribose in water exist as a 5-membered ring? A few word answer is fine. d) AG°for this reaction is about - 5 kJ/mol. Assuming that you start with a 1 mM solution of ribose in water, what is the approximate concentration at equilibrium of (i) the linear form? (ii) The cyclic form? (A good answer should be correct within 20%, e.g. it is fine to approximate 9 mM as 10 mM, but it is not okay to approximate 0.1 mM as 1 mM.) e) This reaction creates a new stereocenter. Please indicate it with a *. f) Consider the starting point for synthesis of purines like ATP, which is PRPP (pheseboribosylevOrhesehate) НО НО LOLOH HO ОН HO OH Pyrophosphate…

Write an acyclic organic molecule that contains exactly two tertiary hydrogen atoms. QUESTION 8

16. An atom or group of atoms that can give organic compounds distinct chemical and physical properties. 21. When a compound with the general formula R-COOH loses a proton, the product that remains is described with this term. Its general formula is R-COO- 24. A class of organic compounds in which three or more carbons form a ring structure. All of the carbon-to-carbon bonds are single bonds in this family of compounds.

Answer 2

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

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Answer 3

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

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Answer 4

Question

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

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Answer 5

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

Answer 6

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Answer 7

Chapter 19, Problem 19.47P

Interpretation Introduction

(a)

Interpretation:

The drawings of the alternative chair conformations of A should be completed. The more stable conformations should be identified.

Concept Introduction:

The carbon atoms in a ring structure can be rotated upward or downward to form different chair conformations of the same compound. These conformations are called alternative chair conformations.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The two functional groups in B that react to form the compound A through cyclization should be identified. The new functional group formed to close the carbon ring should be identified.

Concept Introduction:

A functional group is a combination of atoms which act together to show typical chemical reactions when present in a compound.

Cyclization refers to the chemical reaction through which one or more carbon rings are formed in a compound.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 19.1 - Prob. 19.1P Ch. 19.4 - Problem 19-2 Complete the equation for each...Ch. 19.4 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Write the IUPAC name for each compound.Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - 0 Complete the equations for these reactions.

Solution Summary: The author explains that the drawings of the alternative chair conformations of A should be completed.

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