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Ch. 9 - Alkenes II: Oxidation and Reduction
Mullins - Organic Chemistry: A Learner Centered Approach 1st Edition
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
All textbooksMullins 1st EditionCh. 9 - Alkenes II: Oxidation and ReductionProblem 60a
Chapter 8, Problem 60a

Retrosynthetic analysis is the process of working backward to develop the synthesis of a new compound. In Chapter 10, we begin developing multistep syntheses in this manner. For now, try to work backward a single step by suggesting an alkene and a reagent that would give products (a)–(i). [Your answers should not include alkenes that undergo rearrangement to give the desired products.]

(a) Chemical structure showing a diol with a phenyl group, featuring two hydroxyl (OH) groups on adjacent carbon atoms.

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1
Identify the product (a) and analyze its functional groups and stereochemistry. This will help determine the type of reaction that could have produced it.
Determine the reaction type that could lead to the product. For example, if the product contains an alcohol group, consider reactions like hydroboration-oxidation or oxymercuration-demercuration of an alkene.
Work backward to propose a possible alkene precursor. For example, if the product has a Markovnikov addition of an -OH group, the alkene should be positioned such that the -OH group adds to the more substituted carbon.
Select the appropriate reagent for the reaction. For example, if hydroboration-oxidation is the reaction, the reagent would be BH₃ followed by H₂O₂/NaOH. If oxymercuration-demercuration is the reaction, the reagent would be Hg(OAc)₂ in H₂O followed by NaBH₄.
Verify that the proposed alkene and reagent combination would not lead to rearrangement or undesired side products. Ensure that the reaction conditions are consistent with the desired product's structure and stereochemistry.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Retrosynthetic Analysis

Retrosynthetic analysis is a strategic approach in organic chemistry where chemists deconstruct a target molecule into simpler precursor structures. This method allows for the identification of potential synthetic routes by working backward from the desired product to available starting materials. It emphasizes the importance of understanding functional groups and reaction mechanisms to effectively plan a synthesis.
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Retrosynthesis

Alkenes

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond (C=C). They are key intermediates in organic synthesis due to their reactivity, which allows for various transformations, such as addition reactions. Understanding the properties and reactivity of alkenes is crucial for predicting the outcomes of reactions and selecting appropriate reagents in synthetic pathways.
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Reagents in Organic Synthesis

Reagents are substances used in chemical reactions to facilitate the transformation of reactants into products. In organic synthesis, the choice of reagent can significantly influence the reaction pathway and the final product. Familiarity with common reagents, their mechanisms of action, and the types of reactions they promote is essential for successfully designing and executing synthetic strategies.
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Related Practice
Textbook Question

At the beginning of Chapter 9, we stated that after finishing Chapters 8 and 9, we would have the ability to make a large variety of functional groups using related reactions. Show the reagent(s) necessary to convert 1-isobutylcyclohexene into the following molecules.

(f)

817
views
Textbook Question

At the beginning of Chapter 9, we stated that after finishing Chapters 8 and 9, we would have the ability to make a large variety of functional groups using related reactions. Show the reagent(s) necessary to convert 1-isobutylcyclohexene into the following molecules.

(g)

1136
views
Textbook Question

At the beginning of Chapter 9, we stated that after finishing Chapters 8 and 9, we would have the ability to make a large variety of functional groups using related reactions. Show the reagent(s) necessary to convert 1-isobutylcyclohexene into the following molecules.

(h)

1055
views
Textbook Question

Retrosynthetic analysis is the process of working backward to develop the synthesis of a new compound. In Chapter 10, we begin developing multistep syntheses in this manner. For now, try to work backward a single step by suggesting an alkene and a reagent that would give products (a)–(i). [Your answers should not include alkenes that undergo rearrangement to give the desired products.]

(d)

1136
views
Textbook Question

Retrosynthetic analysis is the process of working backward to develop the synthesis of a new compound. In Chapter 10, we begin developing multistep syntheses in this manner. For now, try to work backward a single step by suggesting an alkene and a reagent that would give products (a)–(i). [Your answers should not include alkenes that undergo rearrangement to give the desired products.]

(f)

827
views
Textbook Question

Retrosynthetic analysis is the process of working backward to develop the synthesis of a new compound. In Chapter 10, we begin developing multistep syntheses in this manner. For now, try to work backward a single step by suggesting an alkene and a reagent that would give products (a)–(i). [Your answers should not include alkenes that undergo rearrangement to give the desired products.]


(b)

1324
views