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Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives
Bruice - Organic Chemistry 8th Edition
Bruice8th EditionOrganic ChemistryISBN: 9780135213711Not the one you use?Change textbook
All textbooksBruice 8th EditionCh. 15 - Reactions of Carboxylic Acids and Carboxylic Acid DerivativesProblem 3g
Chapter 16, Problem 3g

Draw the structure for each of the following:
g. ethyl 2-chloropentanoate

Verified step by step guidance
1
Identify the parent chain: The parent chain is 'pentanoate,' which indicates a five-carbon chain with a carboxylic acid derivative (an ester in this case).
Determine the ester group: The 'ethyl' group is attached to the oxygen atom of the ester functional group. This means the structure will have an ethoxy group (-OCH₂CH₃) attached to the carbonyl carbon.
Locate the substituent: The '2-chloro' indicates that a chlorine atom is attached to the second carbon of the pentanoate chain, counting from the carbonyl carbon as position 1.
Assemble the structure: Start with the pentanoate backbone, attach the ethoxy group to the carbonyl carbon, and place the chlorine atom on the second carbon of the chain.
Double-check the structure: Ensure that all carbons have the correct number of bonds (four for each carbon), and verify that the substituents are placed correctly according to the IUPAC name.

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Key Concepts

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

Ester Functional Group

Ester functional groups are characterized by the presence of a carbonyl (C=O) adjacent to an ether (C-O-C) group. They are formed from the reaction of an alcohol and a carboxylic acid, resulting in a compound that typically has pleasant odors and is commonly found in natural and synthetic flavors and fragrances.
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IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides rules for naming based on the structure of the molecule, including the longest carbon chain, functional groups, and substituents. Understanding these rules is essential for accurately interpreting and constructing chemical names.
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Chirality and Stereochemistry

Chirality refers to the geometric property of a molecule having non-superimposable mirror images, often due to the presence of a chiral center, typically a carbon atom bonded to four different substituents. Stereochemistry is the study of these spatial arrangements, which can significantly affect the properties and reactivity of organic compounds.
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Related Practice
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Which is longer, the carbon–oxygen single bond in a carboxylic acid or the carbon–oxygen bond in an alcohol? Why?

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Draw the structure for each of the following:

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