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3-hydroxybutanoic acid

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

3-hydroxybutanoic acid is a carboxylic acid with a hydroxyl group attached to the third carbon of a four-carbon chain. It is an important compound in the context of naming alcohols and phenols, as it demonstrates the principles of how alcohols are named based on the position of the hydroxyl group.

3-hydroxybutanoic acid cheat sheet for homework

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5 Must Know Facts For Your Next Test

  1. The position of the hydroxyl group in 3-hydroxybutanoic acid is indicated by the number '3', which specifies that the hydroxyl group is attached to the third carbon of the four-carbon chain.
  2. Carboxylic acids are named by identifying the parent chain and adding the suffix '-oic acid' to indicate the presence of the carboxyl group.
  3. The 'butanoic' part of the name refers to the four-carbon (butane) parent chain, and the 'hydroxy' prefix indicates the presence of the hydroxyl group.
  4. The naming of alcohols and phenols follows similar principles, where the position of the hydroxyl group is specified by a number preceding the parent chain name.
  5. Understanding the naming conventions for 3-hydroxybutanoic acid is crucial for correctly identifying and differentiating various alcohols and phenols in organic chemistry.

Review Questions

  • Explain how the name 3-hydroxybutanoic acid reflects the structure of the compound.
    • The name 3-hydroxybutanoic acid indicates that the compound has a four-carbon (butane) chain with a hydroxyl group (-OH) attached to the third carbon. The 'hydroxy' prefix specifies the presence of the hydroxyl group, and the 'butanoic' part of the name refers to the four-carbon parent chain. The number '3' indicates the position of the hydroxyl group, which is the third carbon in the chain. This naming convention follows the general principles of how alcohols and phenols are named based on the location of the hydroxyl group.
  • Analyze the role of 3-hydroxybutanoic acid in the context of naming alcohols and phenols.
    • 3-hydroxybutanoic acid serves as an example to illustrate the key concepts in naming alcohols and phenols. It demonstrates how the position of the hydroxyl group is specified by a number preceding the parent chain name. This is a fundamental aspect of the nomenclature system for these types of organic compounds. By understanding the naming of 3-hydroxybutanoic acid, you can apply the same principles to correctly name a wide range of alcohols and phenols, which is essential for success in organic chemistry.
  • Evaluate the importance of understanding the naming conventions for 3-hydroxybutanoic acid in the broader context of organic chemistry.
    • Mastering the naming conventions for 3-hydroxybutanoic acid is crucial for success in organic chemistry, as it lays the foundation for understanding the nomenclature of a vast array of alcohols, phenols, and other functional groups. The ability to correctly identify the position of the hydroxyl group and apply the appropriate naming rules is a fundamental skill that will be repeatedly tested and applied throughout the study of organic chemistry. By thoroughly comprehending the principles demonstrated by 3-hydroxybutanoic acid, you will be well-equipped to navigate the complex world of organic compound naming, which is essential for interpreting reaction mechanisms, predicting chemical properties, and effectively communicating your understanding of organic chemistry concepts.
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