Can i get help with this question 18. Identify the reagents you would use to prepare each of the following compounds via a Diels-Alder reaction: COOHEn(0)cOOH()

the Diels–Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene,…

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Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter20: Dienes, Conjugated Systems, And Pericyclic Reactions

Section: Chapter Questions

Problem 20.35P: The following triene undergoes an intramolecular Diels-Alder reaction to give a bicyclic product....

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The following triene undergoes an intramolecular Diels-Alder reaction to give a bicyclic product. Propose a structural formula for the product. Account for the observation that the Diels-Alder reaction given in this problem takes place under milder conditions (at lower temperature) than the analogous Diels-Alder reaction shown in Problem 20.34.
The following product is formed by an intramolecular Diels-Alder reaction. Provide the structure of the starting compound.
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II. Alcohols in synthesis A. What are the strategies for the synthesis of alcohols by nucleophilic substitution reactions using halide leaving groups with hydroxide as a nucleophile? How do you predict possible by-products that could arise from this strategy? How do you use the less acetate nucleophile followed by treatment with NaOH to avoid by-products?
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Although benzene itself absorbs at 128 ppm in its 13C NMR spectrum, the carbons of substituted benzenes absorb either upfield or downfield from this value depending on the substituent. Explain the observed values for the carbon ortho to the given substituent in the monosubstituted benzene derivatives X and Y.
Grignard reagent is a versatile tool in synthetic organic chemistry. Using bromocyclopentane as a starting material, show how a Grignard reagent, X, is synthesized. Reaction of X with water produces compound Y while treatment in carbon dioxide followed by hydrolysis forms compound Z. 3-methyl-2butanone reacts with X and hydrolyses to yield compound AA. Draw the structural formulae of compounds Y, Z and AA and write the chemical equations respectively.
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