EBK ORGANIC CHEMISTRY
8th Edition
ISBN: 8220102744127
Author: Bruice
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 67P
Explain why the acid-catalyzed dehydration of an alcohol is a reversible reaction, whereas the base-promoted dehydrohalogenation of an
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The reaction of a ketone with an alcohol in acidic conditions will result in:
an alkane
an acetal
a geminal (gem) diol
an alkene
Hydration of aldehydes and ketones can be catalyzed by acid
or base. Bases catalyze hydration by:
protonating the carbonyl oxygen
making the carbonyl group more electrophilic
employing hydroxide ion, which is a better nucleophile than water
making the carbonyl group less electrophilic
shifting the equilibrium position of the reaction to favor products
Ketones can react with a mole of alcohol to form an acetal product in acidic conditions.
True or False
Chapter 10 Solutions
EBK ORGANIC CHEMISTRY
Ch. 10.1 - Why are NH3 and CH3NH2 no longer nucleophiles when...Ch. 10.1 - Explain the difference in reactivity between...Ch. 10.1 - Prob. 5PCh. 10.1 - Prob. 6PCh. 10.1 - Prob. 8PCh. 10.2 - Prob. 9PCh. 10.3 - Prob. 11PCh. 10.3 - Show how 1-propanol can be converted into the...Ch. 10.4 - Which of the following alcohols dehydrates the...Ch. 10.4 - Prob. 14P
Ch. 10.4 - Prob. 15PCh. 10.4 - Propose a mechanism for each of the following...Ch. 10.4 - Draw the product of each of the following...Ch. 10.4 - Explain why the following alcohols, when heated...Ch. 10.4 - What stereoisomers are formed in the following...Ch. 10.4 - Prob. 20PCh. 10.4 - What alcohol would you treat with phosphorus...Ch. 10.5 - Prob. 22PCh. 10.6 - What are the major products obtained when each of...Ch. 10.6 - Prob. 26PCh. 10.7 - Prob. 27PCh. 10.7 - Would you expect the reactivity of a five-membered...Ch. 10.7 - Prob. 29PCh. 10.7 - What products are obtained from the reaction of...Ch. 10.7 - Prob. 31PCh. 10.7 - Prob. 32PCh. 10.7 - Prob. 33PCh. 10.8 - Draw the mechanism for formation of the two...Ch. 10.8 - Prob. 35PCh. 10.8 - Prob. 36PCh. 10.8 - How do the major products obtained from...Ch. 10.8 - Explain why the two arene oxides in Problem 38...Ch. 10.8 - Which compound is more likely to be carcinogenic?Ch. 10.8 - Three arene oxides can be obtained from...Ch. 10.9 - Explain why the half-life (the time it takes for...Ch. 10.10 - Prob. 43PCh. 10.10 - Prob. 44PCh. 10.10 - Prob. 45PCh. 10.10 - Prob. 46PCh. 10.10 - Prob. 47PCh. 10.10 - Describe a synthesis for each of the following...Ch. 10.11 - Using an alkyl halide and a thiol as starting...Ch. 10.11 - The following three nitrogen mustards were studied...Ch. 10.11 - Why is melphalan a good cancer drug?Ch. 10.11 - Prob. 53PCh. 10.12 - Propose a mechanism for the following reaction:Ch. 10 - Prob. 55PCh. 10 - Which compound is more likely to be carcinogenic?Ch. 10 - Prob. 57PCh. 10 - Prob. 58PCh. 10 - When heated with H2SO4, both...Ch. 10 - What is the major product obtained from the...Ch. 10 - Write the appropriate reagent over each arrow.Ch. 10 - What alkenes would you expect to be obtained from...Ch. 10 - Prob. 63PCh. 10 - Prob. 64PCh. 10 - When deuterated phenanthrene oxide undergoes a...Ch. 10 - An unknown alcohol with a molecular formula of...Ch. 10 - Explain why the acid-catalyzed dehydration of an...Ch. 10 - Prob. 68PCh. 10 - Prob. 69PCh. 10 - Propose a mechanism for the following reaction:Ch. 10 - What product would be formed if the four-membered...Ch. 10 - Which of the following ethers would be obtained in...Ch. 10 - Using the given starting material any necessary...Ch. 10 - Prob. 74PCh. 10 - When 3-methyl-2-butanol is heated with...Ch. 10 - Draw structures for compounds AF.Ch. 10 - Propose a mechanism for each of the following...Ch. 10 - How could you synthesize isopropyl propyl ether,...Ch. 10 - When ethyl ether is heated with excess HI for...Ch. 10 - When the following seven-membered ring alcohol is...Ch. 10 - Ethylene oxide reacts readily with HO because of...Ch. 10 - Describe how each of the following compounds could...Ch. 10 - Propose a mechanism for each of the following...Ch. 10 - Triethylene glycol is one of the products obtained...Ch. 10 - Prob. 85PCh. 10 - Propose a mechanism for the following reaction:Ch. 10 - Prob. 87PCh. 10 - An ion with a positively charged nitrogen atom in...Ch. 10 - The following reaction takes place several times...Ch. 10 - Prob. 90PCh. 10 - Propose a mechanism for each of the following...Ch. 10 - A vicinal diol has OH groups on adjacent carbons....Ch. 10 - Prob. 93PCh. 10 - Prob. 94PCh. 10 - Two stereoisomers are obtained from the reaction...Ch. 10 - Propose a mechanism for each or the following...Ch. 10 - Triethylenemelamine (TEM) is an antitumor agent....
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- enumerate the properties of alcohols contributing to their reactivity with an oxidizing reagent?arrow_forwardChoose the best explanation for why these compounds are all less than fifteen carbons. A) Aldehydes with longer alkyl chains become increasingly nonpolar and the LDF are stronger than hydrogen bonding with ethanol. B) Ethanol molecules will hydrogen bond with the oxygen of the aldehydes. However, longer alkyl chains interrupt the ability of the aldehyde to hydrogen bond with ethanol which decreases the solubility. C) Ethanol molecules will form strong LDF interactions between the alkyl chains of the aldehydes and the alkyl groups of ethanol. The strong attractions cause the aldehydes to precipitate out of solution. D) When aldehydes chain length increases, the aldehydes have stronger intermolecular force with the small ethanol solvent molecules than the ethanol-ethanol intermolecular force.arrow_forwardA problem often encountered in the oxidation of primary alcohols to acids is that esters are sometimes produced as by-products. For example, oxidation of ethanol yields acetic acid and ethyl acetate: Propose a mechanism to account for the formation of ethyl acetate. Take into account the reversible reaction between aldehydes and alcohols:arrow_forward
- Aldehydes and ketones react with one molecule of an alcohol to form compounds called hemiacetals, in which there is one hydroxyl group and one ether-like group. Reaction of a hemiacetal with a second molecule of alcohol gives an acetal and a molecule of water. ROH, H+ OH OR Aldehyde/ketone Alcohol ROH, H+ Draw the structural formulas for the hemiacetal and the acetal formed between the following compounds: OH OH OR OR • Use the wedge/hash bond tools to indicate stereochemistry where it exists. + H₂Oarrow_forwardWhen trans-2-chloro-1-cyclohexanol is treated with a base, cyclohexene oxide is the product. However, when cis-2-chloro-1-cyclohexanol is treated with a base, the product is cyclohexanone A.Write the equation for the reaction between trans-2-chloro-1-cyclohexanol and the base to yield the cyclohexene oxide B.Why doesn’t the cis isomer yield the oxide? C.Write the mechanism for each of the two reactions.arrow_forwardIdentify the alcohol reactant needed to produce each of the following compounds as the major product of an alcohol dehydration reaction. H,SO, Alcohol → CH3–CH=CH–CH3 180°C a. H,SO, Alcohol → CH,=CH-CH–CH3 180°C CH3 b. H,SO, Alcohol CH3-CH-CH2–0–CH,-CH–CH3 140°C ČH3 с. H,SO, Alcohol CH,=CH-CH,–CH3 180°C H,SO, Alcohol CH;-C=C-CH3 180°C CH3 CH3 e.arrow_forward
- Aldehydes and ketones are soluble in organic solvents True False The IUPAC name of the compound CH3CH2COCH3 is ******** The reaction between strong base and C6H6Cl is called The reaction between phenol and nitric acid product O-nitro phenol p-nitro phenol picric acid 2,4-nitrophenol إجابتك إجابتكarrow_forwardTrue or False Considering that two carbon chains have equal number of carbons, but one has Fluorine and the other has Iodine, the one with iodine will have a higher boiling point. Mild oxidation of alkenes results to similar product as that of nucleophilic addition of water to aldehydes.arrow_forwardHydrolysis of an acetal in an acid solution would yield O a) an aldehyde, a ketone, and one alcohol b) an aldehyde, a ketone, and two alcohols c) an aldehyde or a ketone and one alcohol O d) an aldehyde or a ketone and two alcoholsarrow_forward
- Hydrolysis of an acetal in aqueous acid gives an aldehyde or a ketone and two molecules of alcohol or one molecule of a diol. Draw the structural formulas for the products of hydrolysis of the following acetals in aqueous acid.arrow_forwardExplain why aldehydes and ketones react with a weak acid such as hydrogen cyanide but do not react with strong acids such as HCl or H2SO4 (other than being protonated by them).arrow_forwardWhat the Reaction of Hydrolysis of an Ester with a Primary or Secondary Alkyl Group.arrow_forward
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