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22.5 α 氢原子的酸性：烯醇负离子的生成
如 22.1 节所述，羰基化合物 α 位上的氢具有弱酸性，可被强碱脱去，生成烯醇负离子。在比较丙酮（pK_{\text{a}} = 19.3）
1. As noted in Section 22.1, a hydrogen on the α position of a
As noted in Section 22.1, a hydrogen on the α position of a
2. Because carbonyl compounds are only weakly acidic, a strong
Because carbonyl compounds are only weakly acidic, a strong
3. Functional group | Example | pK_{\text{a}} - Carboxylic acid
Functional group | Example | pK_{\text{a}} - Carboxylic acid
4. When a hydrogen atom is flanked by two carbonyl groups, its
When a hydrogen atom is flanked by two carbonyl groups, its
5. Part 5
Part 5
6. Worked Example 22.1: Identifying the Acidic Hydrogens in a Compound
Worked Example 22.1: Identifying the Acidic Hydrogens in a Compound
7. Part 7
Part 7