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Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 22.SE, Problem 41AP
Interpretation Introduction
Interpretation:
The observation that 1-phenyl-2-propenone when treated with a strong base such as LDA does not yield an anion, though it contains a H atom on the carbon atom next to carbonyl group is to be explained.
Concept introduction:
Hydrogen atom on a carbon adjacent to carbonyl group is acidic as the carbanion is stabilized by electron delocalization over the carbonyl group.
To explain:
The observation that 1-phenyl-2-propenone when treated with a strong base such as LDA does not yield an anion, though it contains a H atom on the carbon atom next to carbonyl group.
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Students have asked these similar questions
Indicate the products A and B that are obtained in the following reactions:
OH
CH3
+ HOCH2-CH₂OH + TSOH → A
1° NaH/THF
A +
→>
B
2º C6H5-CH2Cl
Briefly comment on each reaction.
When 2-chloropropane treated with NaOH and 1-chloropropane treated with NaOH separately produce two different functional groups. Provide both reactions and explain the two different functional groups produced.
Ketones and aldehydes react with sodium acetylide (the sodium salt of acetylene) to give alcohols, as shown in the following example:
R1
ОН
1. НС—с: Na*
R2
R1
R2
2. Нзо"
HC
Draw the structure of the major reaction product when the following compound reacts with sodium acetylide, assuming that the reaction takes
preferentially from the Si face of the carbonyl group.
• Use the wedge/hash bond tools to indicate stereochemistry where it exists.
• You do not have to explicitly draw H atoms.
• If a group is achiral, do not use wedged or hashed bonds on it.
CH3
CH
Chapter 22 Solutions
Organic Chemistry
Ch. 22.1 - Prob. 1PCh. 22.1 - How many acidic hydrogens does each of the...Ch. 22.1 - Prob. 3PCh. 22.3 - Write the complete mechanism for the deuteration...Ch. 22.3 - Prob. 5PCh. 22.4 - If methanol rather than water is added at the end...Ch. 22.5 - Prob. 7PCh. 22.5 - Draw a resonance structure of the acetonitrile...Ch. 22.6 - If methanol rather than water is added at the end...Ch. 22.7 - Prob. 10P
Ch. 22.7 - Draw a resonance structure of the acetonitrile...Ch. 22.7 - Why do you suppose ketone halogenations in acidic...Ch. 22.7 - Prob. 13PCh. 22.7 - Prob. 14PCh. 22.7 - Prob. 15PCh. 22.7 - Prob. 16PCh. 22.SE - Prob. 17VCCh. 22.SE - Prob. 18VCCh. 22.SE - Prob. 19VCCh. 22.SE - Prob. 20MPCh. 22.SE - Predict the product(s) and provide the mechanism...Ch. 22.SE - Predict the product(s) and provide the mechanism...Ch. 22.SE - Prob. 23MPCh. 22.SE - In the Hell–Volhard–Zelinskii reaction, only a...Ch. 22.SE - Prob. 25MPCh. 22.SE - Nonconjugated , -unsaturated ketones, such as...Ch. 22.SE - Prob. 27MPCh. 22.SE - Using curved arrows, propose a mechanism for the...Ch. 22.SE - Prob. 29MPCh. 22.SE - One of the later steps in glucose biosynthesis is...Ch. 22.SE - The Favorskii reaction involves treatment of an...Ch. 22.SE - Treatment of a cyclic ketone with diazomethane is...Ch. 22.SE - Prob. 33MPCh. 22.SE - Amino acids can be prepared by reaction of alkyl...Ch. 22.SE - Amino acids can also be prepared by a two-step...Ch. 22.SE - Heating carvone with aqueous sulfuric acid...Ch. 22.SE - Identify all the acidic hydrogens (pKa 25) in the...Ch. 22.SE - Rank the following compounds in order of...Ch. 22.SE - Prob. 39APCh. 22.SE - Base treatment of the following , -unsaturated...Ch. 22.SE - Prob. 41APCh. 22.SE - Prob. 42APCh. 22.SE - Prob. 43APCh. 22.SE - Which, if any, of the following compounds can be...Ch. 22.SE - Prob. 45APCh. 22.SE - Prob. 46APCh. 22.SE - Prob. 47APCh. 22.SE - How might you convert geraniol into either ethyl...Ch. 22.SE - Prob. 49APCh. 22.SE - One way to determine the number of acidic...Ch. 22.SE - Prob. 51APCh. 22.SE - Prob. 52APCh. 22.SE - Prob. 53APCh. 22.SE - Prob. 54APCh. 22.SE - Prob. 55APCh. 22.SE - Prob. 56APCh. 22.SE - All attempts to isolate primary and secondary...Ch. 22.SE - How would you synthesize the following compounds...Ch. 22.SE - Prob. 59APCh. 22.SE - Prob. 60APCh. 22.SE - Prob. 61APCh. 22.SE - Prob. 62APCh. 22.SE - As far back as the 16th century, South American...Ch. 22.SE - The key step in a reported laboratory synthesis of...Ch. 22.SE - Prob. 65AP
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