ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259977596
Author: SMITH
Publisher: MCG
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Textbook Question
Chapter 7, Problem 7.68P
When a single compound contains both a nucleophile and a leaving group, an intramolecular reaction may occur. With this in mind, draw the product of the following reaction.
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In a Wittig reaction, a ketone or aldehyde reacts as an electrophile with a nucleophile called a Wittig reagent (or phosphonium ylide) to produce an alkene. The Wittig reagent is commonly synthesized first in a two-step process beginning with an alkyl halide, then reacted with the carbonyl compound. In this problem, you'll explore the mechanism of a multi-step synthesis to make an alkene using the Wittig approach.
In a Michael addition, which carbon will the nucleophile add to?
H₂C
B
syd
A
A
B
C
H
Give two possible [1,2]-rearrangement products where an alkyl group migrates in the following compound. Motivate also which of the two products will be formed preferentially
Chapter 7 Solutions
ORGANIC CHEMISTRY
Ch. 7 - Problem 7.1 Telfairine, a naturally occurring...Ch. 7 - Give the IUPAC name for each compound. a. b. c. d.Ch. 7 - Prob. 7.3PCh. 7 - An sp3 hybridized CCl bond is more polar than an...Ch. 7 - Prob. 7.5PCh. 7 - Problem 7.6 Identify the nucleophile and leaving...Ch. 7 - Prob. 7.7PCh. 7 - Prob. 7.8PCh. 7 - What neutral nucleophile is needed to convert...Ch. 7 - Prob. 7.10P
Ch. 7 - Prob. 7.11PCh. 7 - Does the equilibrium favor the reactants or...Ch. 7 - Prob. 7.13PCh. 7 - Classify each solvent as protic or aprotic. a. b....Ch. 7 - Prob. 7.15PCh. 7 - Prob. 7.16PCh. 7 - Prob. 7.17PCh. 7 - Prob. 7.18PCh. 7 - Prob. 7.19PCh. 7 - Draw the product of each SN2 reaction and indicate...Ch. 7 - Prob. 7.21PCh. 7 - Prob. 7.22PCh. 7 - What happens to the rate of an SN1 reaction under...Ch. 7 - Draw the products of each SN1 reaction and...Ch. 7 - Classify each carbocation as 1,2, or 3. a. b. c....Ch. 7 - Prob. 7.26PCh. 7 - Prob. 7.27PCh. 7 - Prob. 7.28PCh. 7 - Prob. 7.29PCh. 7 - Problem 7.30 For each alkyl halide and...Ch. 7 - Prob. 7.31PCh. 7 - Prob. 7.32PCh. 7 - Prob. 7.33PCh. 7 - Prob. 7.34PCh. 7 - Prob. 7.35PCh. 7 - Prob. 7.36PCh. 7 - Prob. 7.37PCh. 7 - Prob. 7.38PCh. 7 - Prob. 7.39PCh. 7 - Give the IUPAC name for each compound, including...Ch. 7 - Draw the products formed when each alkyl halide is...Ch. 7 - Give the IUPAC name for each compound. a. c. e. b....Ch. 7 - Prob. 7.43PCh. 7 - Draw the eight constitutional isomers having the...Ch. 7 - Which compound in each pair has the higher boiling...Ch. 7 - Draw the products of each nucleophilic...Ch. 7 - Prob. 7.47PCh. 7 - Rank the species in each group in order of...Ch. 7 - Which of the following nucleophilic substitution...Ch. 7 - Rank the species in each group in order of...Ch. 7 - Prob. 7.51PCh. 7 - Prob. 7.52PCh. 7 - 7.53 Consider the following reaction.
Draw a...Ch. 7 - Prob. 7.54PCh. 7 - Draw the products of each SN2 reaction and...Ch. 7 - Prob. 7.56PCh. 7 - Prob. 7.57PCh. 7 - Consider the following SN1 reaction. a.Draw a...Ch. 7 - 7.59 Pick the reactant or solvent in each part...Ch. 7 - Draw the products of each SN1 reaction and...Ch. 7 - Prob. 7.61PCh. 7 - Prob. 7.62PCh. 7 - Prob. 7.63PCh. 7 - Fluticasone, the chapter-opening molecule, can be...Ch. 7 - Prob. 7.65PCh. 7 - 7.66 Diphenhydramine, the antihistamine in...Ch. 7 - Draw a stepwise, detailed mechanism for the...Ch. 7 - When a single compound contains both a nucleophile...Ch. 7 - Prob. 7.69PCh. 7 - Prob. 7.70PCh. 7 - Draw a stepwise, detailed mechanism f or the...Ch. 7 - Prob. 7.72PCh. 7 - Fill in the appropriate reagent or starting...Ch. 7 - Devise a synthesis of each compound from an alkyl...Ch. 7 - Suppose you have compounds A-D at y our disposal....Ch. 7 - Muscalure, the sex pheromone of the common...Ch. 7 - Prob. 7.77PCh. 7 - Prob. 7.78PCh. 7 - Draw a stepwise mechanism for the following...Ch. 7 - 7.80 As we will learn in Chapter 9, an epoxide is...Ch. 7 - Prob. 7.81PCh. 7 - In some nucleophilic substitutions under SN1...
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- In order to complete the synthesis shown below, you would need to use [ Select ] as the nucleophile source and [Select] as the solvent. H3C OH H3C Br H3CY CH3 H3C CH3arrow_forwardThe Wittig sequence includes this/these reaction step/s. O nucleophilic substitution of a phosphine on an alkyl halide O acid-base reaction removing a hydrogen from the carbon next to the phosphonium group to form an ylide O the aldehyde or ketone combines with the ylide to form an oxaphosphetane O the oxaphosphetane breaks down to form the alkene and a phosphine oxide O all of the above O none of the abovearrow_forwardThe following molecule undergoes an intramolecular reaction in the presence of pyrrolidinium acetate, the protonated form of pyrrolidine. Draw the product of this reaction, assuming that a dehydration reaction takes place.arrow_forward
- Explain why a methoxy group (CH3O) increases the rate of electrophilic aromatic substitution, but decreases the rate of nucleophilic aromatic substitution.arrow_forwardSupply the structures of reactant(s) or product(s) for the following aldol and Claisen reactionsarrow_forwardProvide a mechanism for the following reaction and draw the product.arrow_forward
- The SN2 reaction shows a reversible mechanism when the basic strength nucleophile and leaving group are similar, but not when the strength of the nucleophile as a base is greater than that of the leaving group. Explain.arrow_forwardDraw the product.arrow_forward1) Draw the product of following Robinson Annulation reaction. Make sure to label atoms in the product NaOH H20arrow_forward
- Please give the reagents that will perform the following reaction.arrow_forwardThis reaction is an example of conjugate addition of a nucleophile to an a,ß-unsaturated carbonyl. LOCH3 H20 H3C H3C° OCH3 OCH3 Draw the two resonance structures of the enolate anion intermediate for this reaction.arrow_forwardComplete the following multi-step synthesis.arrow_forward
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