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4. Synthesize targets from starting materials and reagents that deliver no more than 2 carbons. b) Use enolates in this transformation. a) Use enamines in this transformation. H N Ju H بله ملكة

4. Synthesize targets from starting materials and reagents that deliver no more than 2 carbons. b) Use enolates in this transformation. a) Use enamines in this transformation. H N Ju H بله ملكة

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Synthesis
# Synthesis Using Enamines and Enolates ## 4. Synthesize targets from starting materials and reagents that deliver no more than 2 carbons. ### a) Use enamines in this transformation. **Diagram Explanation:** - The structure on the left shows a ketone with an adjacent alkyl chain. - An arrow indicates the transformation of this ketone into an enamine. - The structure on the right shows the enamine form, where the ketone oxygen has been replaced with a nitrogen atom, forming a double bond with a carbon and an ethyl group attached to the nitrogen. ### b) Use enolates in this transformation. **Diagram Explanation:** - The structure on the left shows a β-keto ester with an adjacent alkyl chain and a methoxy group (OCH₃). - An arrow indicates the transformation of this β-keto ester into a simplified hydrocarbon structure. - The structure on the right shows a ketone with an adjacent alkyl chain, lacking the ester group, indicating a decarboxylation process or similar transformation. These transformations illustrate the use of enamines and enolates as intermediates in organic synthesis, with the goal of adding no more than two carbon atoms in the process.
Transcribed Image Text:# Synthesis Using Enamines and Enolates ## 4. Synthesize targets from starting materials and reagents that deliver no more than 2 carbons. ### a) Use enamines in this transformation. **Diagram Explanation:** - The structure on the left shows a ketone with an adjacent alkyl chain. - An arrow indicates the transformation of this ketone into an enamine. - The structure on the right shows the enamine form, where the ketone oxygen has been replaced with a nitrogen atom, forming a double bond with a carbon and an ethyl group attached to the nitrogen. ### b) Use enolates in this transformation. **Diagram Explanation:** - The structure on the left shows a β-keto ester with an adjacent alkyl chain and a methoxy group (OCH₃). - An arrow indicates the transformation of this β-keto ester into a simplified hydrocarbon structure. - The structure on the right shows a ketone with an adjacent alkyl chain, lacking the ester group, indicating a decarboxylation process or similar transformation. These transformations illustrate the use of enamines and enolates as intermediates in organic synthesis, with the goal of adding no more than two carbon atoms in the process.
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