EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE
EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE
12th Edition
ISBN: 9781337915984
Author: Bettelheim
Publisher: Cengage Learning
Question
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Chapter 16, Problem 63P
Interpretation Introduction

(a)

Interpretation:

The structure of six-membered cyclic hemiacetal formed by 5-hydroxyhexanal should be drawn.

Concept Introduction:

Hemiacetal is a molecule formed by the addition of an alcohol to an aldehyde or ketone,containing a carbon bonded to one −OH group and one −OR group. For example-

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  1

Expert Solution
Check Mark

Answer to Problem 63P

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  2

Explanation of Solution

Reaction of the aldehyde group and the hydroxyl group forms a six-membered cyclic hemiacetal.

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  3

Therefore, the structure hemiacetal formed from 5-hydroxyhexanalis as follows:

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  4

Interpretation Introduction

(b)

Interpretation:

The number of possible stereoisomers of 5-hydroxyhexanal should be determined.

Concept Introduction:

Stereoisomers are the compounds that are differ only in the spatial arrangements of their atoms. For a molecule with n stereoisomers, a maximum of 2n stereoisomers are possible.

Expert Solution
Check Mark

Answer to Problem 63P

5-hydroxyhexanal has 2 stereoisomers.

Explanation of Solution

For a molecule with n stereoisomers, a maximum of 2n stereoisomers are possible.

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  5

In 5-hydroxyhexanal, there is one stereocenter.

Therefore, number of stereoisomers can be calculated as follows:

Number of stereOisOmers = 2n= 21= 2

Thus, number of stereoisomers will be 2.

Interpretation Introduction

(c)

Interpretation:

The number of possible stereoisomers of hemiacetal of 5-hydroxyhexanal should be calculated.

Concept Introduction:

Stereoisomers are the compounds that are differ only in the spatial arrangements of their atoms. For a molecule with n stereoisomers, a maximum of 2n stereoisomers are possible.

Expert Solution
Check Mark

Answer to Problem 63P

Hemiacetal of 5-hydroxyhexanal has 4 stereoisomers.

Explanation of Solution

For a molecule with n stereoisomers, a maximum of 2n stereoisomers are possible.

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE, Chapter 16, Problem 63P , additional homework tip  6

In hemiacetal of 5-hydroxyhexanal, there are two stereo centres.

Therefore, number of stereoisomers can be calculated as follows:

Number of stereOisOmers = 2n= 22= 4

Thus, number of stereoisomers are 4.

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Chapter 16 Solutions

EP INTRO.TO GENERAL,ORGANIC...-OWL ACCE

Ch. 16 - 17-11 What is the difference in structure between...Ch. 16 - 17-12 Is it possible for the carbon atom of a...Ch. 16 - 17-13 Which compounds contain carbonyl groups?Ch. 16 - 17-14 Following are structural formulas for two...Ch. 16 - 17-15 Draw structural formulas for the four...Ch. 16 - Prob. 8PCh. 16 - Prob. 9PCh. 16 - 17-18 Draw structural formulas for these ketones....Ch. 16 - 17-19 Write the JUPAC names for these compounds.Ch. 16 - Prob. 12PCh. 16 - 17-2 1 Explain why each name is incorrect. Write...Ch. 16 - Prob. 14PCh. 16 - Prob. 15PCh. 16 - 17-24 In each pair of compounds, select the one...Ch. 16 - Prob. 17PCh. 16 - 17-26 Account for the fact that acetone has a...Ch. 16 - 17-27 Pentane, 1-butanol, and butanal all have...Ch. 16 - 17-28 Show how acetaldehyde can form hydrogen...Ch. 16 - 17-29 Why can’t two molecules of acetone form a...Ch. 16 - 17-30 Answer true or false. (a) The reduction of...Ch. 16 - 17-3 1 Draw a structural formula for the principal...Ch. 16 - Prob. 24PCh. 16 - 17-33 What simple chemical test could you use to...Ch. 16 - 17-34 Explain why liquid aldehydes are often...Ch. 16 - 17-35 Suppose that you take a bottle of...Ch. 16 - 17-36 Explain why the reduction of an aldehyde...Ch. 16 - Prob. 29PCh. 16 - Prob. 30PCh. 16 - Prob. 31PCh. 16 - Prob. 32PCh. 16 - Prob. 33PCh. 16 - Prob. 34PCh. 16 - Prob. 35PCh. 16 - Prob. 36PCh. 16 - Prob. 37PCh. 16 - Prob. 38PCh. 16 - 17-47 What is the characteristic structural...Ch. 16 - Prob. 40PCh. 16 - Prob. 41PCh. 16 - Prob. 42PCh. 16 - Prob. 43PCh. 16 - Prob. 44PCh. 16 - Prob. 45PCh. 16 - 17-54 Following is the structure of...Ch. 16 - Prob. 47PCh. 16 - Prob. 48PCh. 16 - Prob. 49PCh. 16 - Prob. 50PCh. 16 - Prob. 51PCh. 16 - 17-60 1-Propanol can be prepared by the reduction...Ch. 16 - Prob. 53PCh. 16 - 17-62 Show how to bring about these conversions....Ch. 16 - Prob. 55PCh. 16 - Prob. 56PCh. 16 - Prob. 57PCh. 16 - Prob. 58PCh. 16 - 17-67 Draw structural formulas for these...Ch. 16 - Prob. 60PCh. 16 - 17-69 Propanal (bp 49°C) and 1-propanol (bp 97°C)...Ch. 16 - 17-70 What simple chemical test could you use to...Ch. 16 - Prob. 63PCh. 16 - Prob. 64PCh. 16 - Prob. 65PCh. 16 - 17-72 The following molecule is an enediol; each...Ch. 16 - 17-73 Alcohols can be prepared by the...Ch. 16 - 17-74 Glucose, C6H12O6, contains an aldehyde group...Ch. 16 - Prob. 69PCh. 16 - Prob. 70PCh. 16 - Prob. 71PCh. 16 - 17-78 Complete the following equation for these...Ch. 16 - 17-79 Write an equation for each conversion. (a)...Ch. 16 - Prob. 74P
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