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邻羟基苯甲醛和对羟基苯甲醛哪个酸性强
邻羟基苯甲醛和对羟基苯甲醛哪个酸性强
2025年03月21日 16:54
有1个网友回答
网友（1）：
醛基是吸电子的取代基，都可以使苯环上电子云密度减小，使酚羟基的酸性减弱。
但是，邻羟基苯甲醛羟基上的氢与醛基上的氧形成氢键（红色虚线），使羟基氢的电离能力降低。
所以，对羟基苯甲醛酸性强。
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