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(1) LIAIH,lether (2) dil. H*/H20 a single diastereomer a pair of diastereomers Oa pair of enantiomers a pair of constitutional isomers

(1) LIAIH,lether (2) dil. H*/H20 a single diastereomer a pair of diastereomers Oa pair of enantiomers a pair of constitutional isomers

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Reaction Analysis** **The reaction below will generate...** A diagram features a six-membered carbon ring with an oxygen double-bonded (a ketone group). It undergoes the following reaction: 1. **Reagents:** - LiAlH₄/ether - Dilute H⁺/H₂O **Reaction Options:** - ○ a single diastereomer - ○ a pair of diastereomers - ○ a pair of enantiomers - ○ a pair of constitutional isomers **Explanation:** The diagram depicts a ketone undergoing a reduction reaction. The LiAlH₄ is a strong reducing agent that will typically convert ketones to secondary alcohols. The following aqueous acidic workup (dil. H⁺/H₂O) facilitates the protonation of the alkoxide intermediate to form the alcohol. The outcome may produce different stereochemical results (e.g., diastereomers or enantiomers) based on the positions around the chiral center created in the reaction. Consider the stereochemistry at the site of reduction to determine the correct option.
Transcribed Image Text:**Reaction Analysis** **The reaction below will generate...** A diagram features a six-membered carbon ring with an oxygen double-bonded (a ketone group). It undergoes the following reaction: 1. **Reagents:** - LiAlH₄/ether - Dilute H⁺/H₂O **Reaction Options:** - ○ a single diastereomer - ○ a pair of diastereomers - ○ a pair of enantiomers - ○ a pair of constitutional isomers **Explanation:** The diagram depicts a ketone undergoing a reduction reaction. The LiAlH₄ is a strong reducing agent that will typically convert ketones to secondary alcohols. The following aqueous acidic workup (dil. H⁺/H₂O) facilitates the protonation of the alkoxide intermediate to form the alcohol. The outcome may produce different stereochemical results (e.g., diastereomers or enantiomers) based on the positions around the chiral center created in the reaction. Consider the stereochemistry at the site of reduction to determine the correct option.
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