Question:
Glycine can be obtained from formaldehyde by
Glycine can be obtained from formaldehyde by
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Williamson's synthesis is for ethers, Phthalimide synthesis for primary amines, and coupling reaction for azo compounds.
Updated On: May 2, 2026
- Strecker synthesis
- Williamson's synthesis
- Phthalimide synthesis
- Coupling reaction
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Strecker synthesis is a method for preparing amino acids from aldehydes.
Step 2: Detailed Explanation:
In Strecker synthesis, an aldehyde (formaldehyde, HCHO) is treated with ammonia (NH\(_3\)) and hydrogen cyanide (HCN) to form an \(\alpha\)-aminonitrile, which is then hydrolyzed to give the \(\alpha\)-amino acid (glycine). \[ HCHO + NH_3 + HCN \rightarrow H_2N-CH_2-CN \xrightarrow{H_2O/H^+} H_2N-CH_2-COOH \]
Step 3: Final Answer:
Glycine can be obtained from formaldehyde by Strecker synthesis, option (A).
Strecker synthesis is a method for preparing amino acids from aldehydes.
Step 2: Detailed Explanation:
In Strecker synthesis, an aldehyde (formaldehyde, HCHO) is treated with ammonia (NH\(_3\)) and hydrogen cyanide (HCN) to form an \(\alpha\)-aminonitrile, which is then hydrolyzed to give the \(\alpha\)-amino acid (glycine). \[ HCHO + NH_3 + HCN \rightarrow H_2N-CH_2-CN \xrightarrow{H_2O/H^+} H_2N-CH_2-COOH \]
Step 3: Final Answer:
Glycine can be obtained from formaldehyde by Strecker synthesis, option (A).
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