ORGANIC CHEMISTRY-OWL V2 ACCESS
8th Edition
ISBN: 9781305582422
Author: Brown
Publisher: CENGAGE L
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Question
Chapter 7, Problem 7.7P
Interpretation Introduction
Interpretation:
Number of stereoisomers possible for enanthotoxin has to be given.
Concept introduction:
Chiral centre:
A chiral molecule/ion is non-superimposable on its mirror image.
Expert Solution & Answer
Explanation of Solution
There is one tetrahedral chiral centre (marked with an
) and three double bonds that can show cis-trans isomerism, so there are 24 or 16 possible stereoisomers.
Hence, the totally 16 isomer is possible.
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Aspirin is the common name for the compound acetylsalicylic acid, widely used as a
fever reducer and as a pain killer. Salicylic acid, whose name comes from Salix, the
willow family of plants, was derived from willow bark extracts. In folk medicine, willow
bark teas were used as headache remedies and other tonics. Nowadays, salicylic acid
is administered in the form of aspirin which is less irritating to the stomach than salicylic
acid. To prepare aspirin, salicylic acid is reacted with an excess of acetic anhydride.
A small amount of a strong acid is used as a catalyst which speeds up the reaction. In
this experiment, phosphoric acid will be used as the catalyst. The excess acetic acid
will be quenched with the addition of water. The aspirin product is not very soluble in
water so the aspirin product will precipitate when water is added. The synthesis
reaction of aspirin is shown below:
Actic anhydride
5 ml.
Acetic acid
Salicylic acid
28
Acetylsalicylie acid
Procedure
1)
Mix salicylic…
Ester compounds often have a sweet, pleasant odor. Many
characteristic fruit scents are largely due to the natural presence
of one or more ester compounds. As such, artificial scents for
foods are often composed of complex mixtures of various esters.
The exact identity and ratio of ingredients that compose a
particular scent are closely guarded secrets in the food and
fragrance industry.
Suppose that you are a chemist working for a company that i
creating a new line of air fresheners. The company is considering
three scents: apple, pear, and pineapple. The project manager has
asked you to prepare the ester compounds that are largely
responsible for these scents. The structural formulas for these
ester compounds are shown here:
Alcohols for Air Freshener Project
Molar mass Density Cost, per
(g/mL)
Reagent
(g/mol)
1.00 L
methanol
32.04
0.79
$46.20
ethanol
46.07
0.79
$112.00
1-propanol
60.10
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$72.70
1-butanol
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Use the structural formulas of the alcohols and…
Digitalis is a preparation made from the dried seeds and leaves of the purple foxglove,
Digitalis purpurea, a plant native to southern and central Europe and cultivated in the United
States. The preparation is a mixture of several active components, including digitalin. Digi-
talis is used in medicine to increase the force of myocardial contraction and as a conduction
depressant to decrease heart rate (the heart pumps more forcefully but less often).
HC
OH
H,C
H
CH3
H.
H.
(a) Describe this glycosidic bond
OCH, H
A (b) Draw an open-chain Fischer projection
of this monosaccharide
CH3
H.
(e) Describe this glycosidic bond
OCH, HA
H.
HO H)
H.
OH
НО
(d) Name this monosaccharide unit
H.
OH
Digitalin
Chapter 7 Solutions
ORGANIC CHEMISTRY-OWL V2 ACCESS
Ch. 7.2 - Write the IUPAC name of each compound.Ch. 7.2 - Write the common name of each alkyne.Ch. 7.5 - Prob. 7.3PCh. 7.7 - Draw a structural formula for a hydrocarbon with...Ch. 7.7 - Hydration of 2-pentyne gives a mixture of two...Ch. 7.9 - Prob. 7.6PCh. 7 - Prob. 7.7PCh. 7 - Show how to prepare each alkyne from the given...Ch. 7 - Prob. 7.9PCh. 7 - Complete each acid-base reaction and predict...
Ch. 7 - Draw structural formulas for the major product(s)...Ch. 7 - Draw the structural formula of the enol formed in...Ch. 7 - Prob. 7.13PCh. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - Show reagents and experimental conditions you...Ch. 7 - Show reagents and experimental conditions you...Ch. 7 - Show how to convert 1-butyne to each of these...Ch. 7 - Prob. 7.19PCh. 7 - Show reagents and experimental conditions to bring...Ch. 7 - Show reagents to bring about each conversion.Ch. 7 - Propose a synthesis for (Z)-9-tricosene...Ch. 7 - Propose a synthesis of each compound starting from...Ch. 7 - Show how to prepare each compound from 1-heptene....Ch. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - Following is the structural formula of the...Ch. 7 - The standard procedure for synthesizing a compound...Ch. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Prob. 7.35P
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