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Predict the elimination products of the following reactions, and label the major
Chapter 7, Problem PROBLEM 7-28(choose chapter or problem)
Predict the elimination products of the following reactions, and label the major products. (a) cis-1-bromo-2-methylcyclohexane + NaOCH3 in CH3OH (b) trans-1-bromo-2-methylcyclohexane + NaOCH3 in CH3OH
Questions & Answers
QUESTION:
Predict the elimination products of the following reactions, and label the major products. (a) cis-1-bromo-2-methylcyclohexane + NaOCH3 in CH3OH (b) trans-1-bromo-2-methylcyclohexane + NaOCH3 in CH3OH
ANSWER:Step 1 of 2
The solvent methanol means the elimination proceeds through E1. Thus, the stereochemistry of the substrate does not affect the stereochemistry of the product.
Thus, a diastereomer is obtained.
indicates these reactions occur viaEl, therefore stereochemistry of theeliminating halogen and adjacent hydrogen is not an issue. Both reactions yield a mix of diastereomeric alkenes (the E and Z alkene form for both reactions).