Organic Chemistry
7th Edition
ISBN: 9780321826596
Author: Bruice, Paula Yurkanis/
Publisher: Pearson College Div
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Chapter 16.6, Problem 14P
Is the following statement true or false?
If the newly added group in the tetrahedral intermediate is a stronger base than the group attached to the acyl group in the reactant, then formation of the tetrahedral intermediate is the rate-limiting step of a nucleophilic acyl substitution reaction.
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During the decarboxylation of acetoacetate, what is the nucleophile and what is the electrophile? Is the formation of a schiff base simply a preparation step or is the formation of a schiff base formed also by nucleophile/electrophile interaction?
What is difference between the acetoacetic and malonic ester syntheses? Provide an example of each, including all intermediates..
1. Put these three common types of carbonyl compound in order of decreasing reactivity
ester amide acid chloride
2. For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable?
3. For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O):
Why makes this type of carbonyl so reactive to nucleophiles?
Chapter 16 Solutions
Organic Chemistry
Ch. 16.1 - The aromas of many flowers and fruits are due to...Ch. 16.1 - Prob. 2PCh. 16.1 - Name the following:Ch. 16.1 - Prob. 4PCh. 16.2 - Prob. 5PCh. 16.2 - Which is longer, the carbon-oxygen single bond in...Ch. 16.2 - There are three carbon-oxygen bonds in methyl...Ch. 16.2 - Prob. 8PCh. 16.4 - Prob. 9PCh. 16.4 - Prob. 10P
Ch. 16.5 - a. What is the product of the reaction of acetyl...Ch. 16.6 - a. Which compound has the stretching vibration for...Ch. 16.6 - Using the pKa values listed in Table 15.1, predict...Ch. 16.6 - Is the following statement true or false? If the...Ch. 16.7 - What is the product of an acyl substitution...Ch. 16.8 - PROBLEM 16
Starting with acetyl chloride, what...Ch. 16.8 - Prob. 18PCh. 16.9 - We saw that it is necessary to use excess amine in...Ch. 16.9 - Prob. 20PCh. 16.9 - a. state three factors that cause the uncatalyzed...Ch. 16.10 - Prob. 23PCh. 16.10 - Using the mechanism for the acid-catalyzed...Ch. 16.10 - Prob. 25PCh. 16.10 - Prob. 27PCh. 16.10 - Write the mechanism for the acid-catalyzed...Ch. 16.10 - Write the mechanism for the acid-catalyzed...Ch. 16.11 - Prob. 30PCh. 16.12 - Prob. 31PCh. 16.12 - Prob. 32PCh. 16.13 - Prob. 34PCh. 16.13 - Which has a higher melting point, glyceryl...Ch. 16.13 - Draw the structure of an optically inactive fat...Ch. 16.13 - Draw the structure of an optically active fat...Ch. 16.14 - Show how each of the following esters could he...Ch. 16.14 - Prob. 39PCh. 16.15 - Prob. 40PCh. 16.15 - Which of the following reactions leads to the...Ch. 16.16 - Prob. 42PCh. 16.16 - Prob. 43PCh. 16.18 - Prob. 44PCh. 16.18 - Prob. 45PCh. 16.19 - Prob. 46PCh. 16.19 - Which alkyl halides from the carboxylic acids...Ch. 16.20 - Prob. 49PCh. 16.20 - Prob. 50PCh. 16.20 - Prob. 51PCh. 16.21 - Prob. 52PCh. 16.21 - Prob. 53PCh. 16.22 - How could you synthesize the following compounds...Ch. 16 - Prob. 55PCh. 16 - Name the following:Ch. 16 - Prob. 57PCh. 16 - What compound are obtained from the fallowing...Ch. 16 - a. Rank the following esters in order of...Ch. 16 - Because bromocyclohexane is a secondary alkyl...Ch. 16 - a. Which compound would you expect to have a...Ch. 16 - How could you use 1H NMR spectroscopy to...Ch. 16 - Prob. 63PCh. 16 - a. When a carboxylic acid is dissolved in...Ch. 16 - Rank the following compounds in order of...Ch. 16 - Prob. 66PCh. 16 - Prob. 67PCh. 16 - Prob. 68PCh. 16 - A compound with molecular formula C5H10O2 gives...Ch. 16 - Prob. 70PCh. 16 - Prob. 71PCh. 16 - Prob. 72PCh. 16 - Two products, A and B, are obtained from the...Ch. 16 - Prob. 74PCh. 16 - Prob. 75PCh. 16 - Prob. 76PCh. 16 - Prob. 77PCh. 16 - When treated with an equivalent of methanol,...Ch. 16 - a. Identify the two products obtained from the...Ch. 16 - Prob. 80PCh. 16 - Identity the major and minor products of the...Ch. 16 - Prob. 82PCh. 16 - When a compound with molecular formula C11H14O2...Ch. 16 - Prob. 84PCh. 16 - Prob. 85PCh. 16 - The 1H NMR spectra for two esters with molecular...Ch. 16 - Show how the following compounds could be prepared...Ch. 16 - Prob. 88PCh. 16 - Prob. 89PCh. 16 - Prob. 90PCh. 16 - The intermediate shown here is formed during the...Ch. 16 - Prob. 92PCh. 16 - Propose a mechanism that accounts for the...Ch. 16 - Catalytic antibodies catalyze a reaction by...Ch. 16 - Prob. 95P
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- he reaction that occurs when the benzaldehyde in your hand is reacted in a basic environment. Cannizzaro reaction is called benzoin recovery when reacted with cyanide. It Explain the reason by writing the reaction mechanisms of the reactions.arrow_forwardWhat is the reaction mechanism for formaldehyde and phenol under acidic conditions.arrow_forwardIn which step in the acid-catalyzed hydrolysis reaction mechanism of the ester is the direction of flow of electrons given incorrectly?arrow_forward
- What is the product of an acyl substitution reaction—a new carboxylic acid derivative, a mixture of two carboxylic acid derivatives, or no reaction—if the new group in the tetrahedral intermediate is the following? a. a stronger base than the substituent that is attached to the acyl group b. a weaker base than the substituent that is attached to the acyl group c. similar in basicity to the substituent that is attached to the acyl grouparrow_forwarda) Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride b) For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? c) For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?arrow_forwardThe reaction that occurs when the benzaldehyde you have is reacted in a basic environment is called the Cannizzaro reaction, and when it is reacted with cyanide, it is called benzoin. It Explain the reason by writing the reaction mechanisms of the reactions.arrow_forward
- A strong acid is generally used to catalyze the Fischer esterification of carboxylic acids.What two steps in the reaction are accelerated by the presence of strong acid? What function does the acid play in each of these steps?arrow_forwardWhich one of these compounds would be the best starting material for a malonic ester synthesis?arrow_forwardWhat is the mechanism, step by step, for this reaction? (Using carboxilic acid reactions)arrow_forward
- Define the carbon bond-forming reactions of enolates with carbonyl electrophiles ?arrow_forwardWhat is the last step in the general mechanism for electrophilic aromatic substitution? Loss of the electrophile from the aromatic ring Deprotonation of the aromatic ring Addition of the electrophile to the aromatic ring Protonation of the aromatic ringarrow_forwardComplete the curved arrow mechanism of the following double elimination reaction when 2,2-dichloro-3,3-dimethylbutane is treated with two equivalents of sodium amide and heated in mineral oil. A.) Use three curved arrows to show the elimination of the first hydrogen chloride. B.) Use three curved arrows to show the elimination of the second hydrogen chloride. C.) Complete the structure of the organic product formed from the double elimination. The ammonia and chloride ion formed in step 1 is not drawn for clarity.arrow_forward
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