Concept explainers
(a)
Interpretation: The stereogenic center(s) is to be labeled.
Concept introduction: Stereoisomers are the compounds in which molecular formula of a compound remains same but positions of different atoms or groups are changed to form new compounds. The stereogenic centers are also known as sterocenters. The stereocenters are carbon atoms on which the interchanging of two atoms or groups results in the formation of new stereoisomers.
(b)
Interpretation: Amide(s) that can be reduced to form benzphetamine is to be predicted.
Concept introduction:
(c)
Interpretation: The carbonyl compound and amine that can be used to make benzphetamine by reductive amination are to be stated. The possible methods are to be drawn.
Concept introduction: Amines are the derivatives of ammonia consisting of nitrogen atom with the lone pair of electrons. They are basic compounds. The synthesis of the products relies upon the type of reactants and reagents that are used during the reactions. The energy of a target molecule should be low because it increases the stability of a molecule that results in the formation of molecules with high yield. The reagents perform numerous functions in reactions like proton abstraction, oxidation, reduction, catalysis, and dehydrogenation.
(d)
Interpretation: The products which are formed by Hofmann elimination from benzphetamine are to be drawn. The major product is to be labeled.
Concept introduction: Amines are the derivatives of ammonia consisting of nitrogen atom with the lone pair of electrons. They are basic compounds. Hoffman’s elimination reaction involves the less substituted alkene as a more favourable product, whereas according to Zaitsev rule, more substituted
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Chapter 25 Solutions
ORGANIC CHEMISTRY
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- The analgesic Tylenol is often taken by people who are allergic to aspirin. Tylenol contains acetaminophen (structure shown) as the active ingredient. Is the structure of acetaminophen similar to the structure of aspirin? In what way? Would acetaminophen give a positive phenol test? What products would be obtained if acetaminophen were hydrolyzed in acidic aqueous solution?arrow_forwardEthyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, 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+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Given 8.45 gg 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. A chemist ran the reaction and obtained 5.50 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 8.45 gg of butanoic acid and excess…arrow_forwardEthyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, 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+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Part A Given 7.30 gg 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. Part B A chemist ran the reaction and obtained 5.95 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. Part 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 7.30 gg of…arrow_forward
- What products are formed when all of the amide and ester bonds are hydrolyzed in each of the following compounds? Tamiu [part (a)] is the trade name of the antiviral agent oseltamivir, thought to be the most effective agent in treating inuenza. Aspartame [part (b)] is the articial sweetener used in Equal and many diet beverages. One of the products ofthis hydrolysis reaction is the amino acid phenylalanine. Infants afflicted with phenylketonuria cannot metabolize this amino acid, so it accumulates, causing mental retardation. When the affliction is identied early, a diet limiting the consumption of phenylalanine (and compounds like aspartame that are converted to it) can make a normal life possible.arrow_forward17. Rank the acid derivatives with respect to their reactivity with water. acid halide > ester > acid anhydride > amide acid anhydride > amide > acid halide > ester amide > ester > acid anhydride > acid halide acid halide > acid anhydride > ester > amide A) B) C) D) 18. Disregarding A) 3 stereoisomers, how many different enols can the B-diketone CH3COCH₂COCH₂CH3 form? B) 1 C) 4 D) O E) 2arrow_forwardShow how to convert amines to other functional groups, and devise multistepsyntheses using amines as starting materials and intermediatesarrow_forward
- Methylparaben is a common preservative used in cosmetics. What carboxylic acid and alcohol are needed to synthesize methylparaben by Fischer esterifi cation?arrow_forwardGive a clear handwritten answer of this question and Explain..?arrow_forward(c) Draw the structure of the hemi-acetal and acetal formed when cyclohexanone is combined with methanol in the presence of catalytic acid.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning