Q2 · CSIR-NET Chemistry, June 2018

Paper: CSIR-NET June 2018 · Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: General Organic Chemistry – General · Marks: 2 · Difficulty: Hard

For the following compounds, the correct order of reactivity towards nucleophilic acyl substitution is
(a)acetyl chloride < methyl acetate < acetic anhydride < acetamide
(b)acetamide < methyl acetate < acetic anhydride < acetyl chloride
(c)acetamide < acetic anhydride < acetyl chloride < methyl acetate
(d)methyl acetate < acetamide < acetic anhydride < acetyl chloride
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Reactivity towards nucleophilic acyl substitution follows leaving-group ability: acetamide < methyl acetate < acetic anhydride < acetyl chloride.

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