Concept explainers
(a)
Interpretation: The enol form of compound (a) is to be drawn.
Concept introduction: The
(b)
Interpretation: The enol forms of compound (b) are to be drawn.
Concept introduction: The chemical equilibrium that exists between a keto form of a compound and an enol form of the same compound is known as keto-enol tautomerism. Tautomers refer to these keto and enol forms.
(c)
Interpretation: The keto form of compound (c) is to be drawn.
Concept introduction: The chemical equilibrium that exists between a keto form of a compound and an enol form of the same compound is known as keto-enol tautomerism. Tautomers refer to these keto and enol forms.
(d)
Interpretation: The keto form of compound (d) is to be drawn.
Concept introduction: The chemical equilibrium that exists between a keto form of a compound and an enol form of the same compound is known as keto-enol tautomerism. Tautomers refer to these keto and enol forms.
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Chapter 11 Solutions
ORGANIC CHEMISTRY
- Draw the enol or keto tautomer(s) of each compoundarrow_forwardWhat enolate is formed when each ketone is treated with LDA in THF solution? What enolate is formed when these same ketones are treated with NaOCH3 in CH3OH solution?arrow_forwardWhat is the product formed when each dicarbonyl compound undergoes an intramolecular aldol reaction, followed by dehydration.arrow_forward
- Which carbonyl group in each pair absorbs at a higher frequency? a. CHO сно b. or orarrow_forwardDraw the product formed from the ring-closing metathesis of each compound. Then, devise a synthesis of each metathesis starting material from benzene, alcohols with four or fewer carbons, and any needed organic or inorganic reagents.arrow_forwardDraw the products obtained (including stereochemistry) when each compound is treated with LDA, followed by CH3I.arrow_forward
- What alkyne yields each ketone as the only product both with acid-catalyzed hydration and after hydroboration–oxidation?arrow_forwardUsing ethynylcyclohexane as a starting material and any other needed reagents, how can the following compounds be synthesized?arrow_forwardWhat crossed Claisen product is formed from each pair of compounds?arrow_forward
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