ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259977596
Author: SMITH
Publisher: MCG
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Chapter 31, Problem 31.31P
Interpretation Introduction
Interpretation: The stepwise mechanism for the formation of flexibilene from diphosphate and isopentenyl diphosphate is to be drawn. The unusual about the cyclization that forms
Concept introduction: Terpenes are naturally occurring compounds that are present in plants and animals. Terpenes contain one or more isoprene units. Terpenoids are derivatives of terpenes with oxygen containing
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Ethyl butyrate, CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring.It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+):
CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l)
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c) The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be produced from 7.70 g of butanoic acid and excess ethanol?
Chapter 31 Solutions
ORGANIC CHEMISTRY
Ch. 31 - Problem 31.1
One component of jojoba oil is a wax...Ch. 31 - Problem 31.2
How would you expect the melting...Ch. 31 - Problem 31.3
Draw the products formed when...Ch. 31 - Problem 31.4
The main fatty acid component of the...Ch. 31 - Prob. 31.5PCh. 31 - Problem 31.6
Draw the structure of a lecithin...Ch. 31 - Prob. 31.7PCh. 31 - Problem 31.8
Why are phospholipids, but not...Ch. 31 - Problem 31.9
Explain why regularly ingesting a...Ch. 31 - Problem 31.10
Locate the isoprene units in each...
Ch. 31 - Problem 31.11
Locate the isoprene units in...Ch. 31 - Problem 31.12
Write a stepwise mechanism for the...Ch. 31 - Prob. 31.13PCh. 31 - Prob. 31.14PCh. 31 - Prob. 31.15PCh. 31 - Prob. 31.16PCh. 31 - 31.17 Locate the isoprene units in each...Ch. 31 - Prob. 31.18PCh. 31 - Prob. 31.19PCh. 31 - Prob. 31.20PCh. 31 - Prob. 31.21PCh. 31 - 31.22 What is the structure of an optically...Ch. 31 - Prob. 31.23PCh. 31 - 31.24 Draw the structure of the following...Ch. 31 - Prob. 31.25PCh. 31 - Locate the isoprene units in each compound. a. e....Ch. 31 - 31.27 Classify each terpene and terpenoid in...Ch. 31 - 31.38 Draw the products formed when cholesterol is...Ch. 31 - 31.29 An isoprene unit can be thought of as having...Ch. 31 - 31.30 Draw a stepwise mechanism for the conversion...Ch. 31 - Prob. 31.31PCh. 31 - Prob. 31.32PCh. 31 - Draw three-dimensional structures f or each...Ch. 31 - Prob. 31.34PCh. 31 - Prob. 31.35PCh. 31 - Prob. 31.36PCh. 31 - Prob. 31.37PCh. 31 - 31.38 Draw the products formed when cholesterol is...Ch. 31 - 31.39 Draw a stepwise mechanism for the following...Ch. 31 - 31.40 Draw a stepwise mechanism for the following...Ch. 31 - Prob. 31.41P
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- In the chemical synthesis of DNA and RNA, hydroxyl groups are normally converted to triphenylmethyl (trityl) ethers to protect the hydroxyl group from reaction with other reagents. Triphenylmethyl ethers are stable to aqueous base but are rapidly cleaved in aqueous acid. (a) Why are triphenylmethyl ethers so readily hydrolyzed by aqueous acid? (b) How might the structure of the triphenylmethyl group be modified to increase or decrease its acid sensitivity?arrow_forwardEthyl butyrate, CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring.It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l). The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be produced from 8.50 gof butanoic acid and excess ethanol? Express your answer in grams to three significant figures.arrow_forwardEthyl butyrate, CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring.It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Given 8.50 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100%yield? Express your answer in grams to three significant figures.arrow_forward
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