Textbook Question
Give appropriate names for the following compounds:
(e)
(f)
22. Carboxylic Acid Derivatives: NAS
Naming Esters
4:42 minutesProblem 2b
Textbook Question
Give an example for each of the following:
b. a β-diester
Verified step by step guidance1
Step 1: Understand the term 'b-diester'. A b-diester refers to a compound containing two ester functional groups (-COOR) that are separated by a single carbon atom. This is also known as a 1,3-diesters system.
Step 2: Recall the general structure of an ester group. An ester has the general formula R-COOR', where R and R' can be alkyl or aryl groups.
Step 3: Construct the general structure of a b-diester. The two ester groups should be attached to a central carbon atom, with one carbon atom separating them. The general formula can be written as R-CO-CH2-COOR'.
Step 4: Choose specific alkyl or aryl groups for R and R' to create an example. For instance, you could use methyl groups (CH3) for both R and R', resulting in the compound dimethyl malonate (CH3OCO-CH2-COOCH3).
Step 5: Verify the structure to ensure it meets the criteria of a b-diester. Check that there are two ester groups and that they are separated by a single carbon atom.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
b-Diester
A b-diester is a type of organic compound that contains two ester functional groups (-COOR) located on adjacent carbon atoms in a carbon chain. This structure is significant in organic synthesis and can be derived from the reaction of a dicarboxylic acid with an alcohol. The presence of two ester groups allows for unique reactivity and the formation of various derivatives, making b-diesters important in the synthesis of larger molecules.
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Diesters (Dieckmann Condensation)
Esterification Reaction
Esterification is a chemical reaction that forms an ester from an alcohol and a carboxylic acid, typically in the presence of an acid catalyst. This reaction involves the nucleophilic attack of the alcohol's hydroxyl group on the carbonyl carbon of the acid, leading to the elimination of water. Understanding this reaction is crucial for synthesizing b-diesters, as it provides the foundational mechanism for their formation.
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Dicarboxylic Acids
Dicarboxylic acids are organic compounds that contain two carboxyl (-COOH) groups. They play a vital role in organic chemistry, particularly in the synthesis of b-diesters, as they provide the necessary functional groups for esterification. Common examples include oxalic acid and succinic acid, which can react with alcohols to form b-diesters, showcasing the versatility of these compounds in organic synthesis.
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