有机化合物的结构与性质——第35届中国化学奥林匹克(初赛)第8题解析

doi:10.3866/PKU.DXHX202212039

Abstract

Abstract:

The article analyzed question 8 of organic chemistry part in the 35th Chinese Chemistry Olympiad Competition (Preliminary) in detail. The question involved the fundamental theory of organic chemistry and the properties of organic substances. The relevant theories, scientific backgrounds, or problem-solving strategies were discussed in depth. This will promote the readers' understanding of organic chemistry and reinforce the chemical concept of structure determining properties.

Key words: Chemistry Olympiad, Organic chemistry, Steric effect, Electronic effect, Thorpe-Ingold effect

Jun Li, Mingan Yang, Xilong Li, Xiaoli Chen. Structures and Properties of Organic Compounds: Analysis of Problem 8 of the 35th Chinese Chemistry Olympiad Competition (Preliminary)[J].University Chemistry, 2023, 38(10): 324-329.

Figures/Tables 10

References 27

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题号	涉及知识点	难度指数
8-1	马氏规则；碳正离子重排；亲核取代反应；过渡态；动力学控制	++
8-2	有机物的酸性；共轭碱；诱导效应；共轭效应；离域体系；弯曲键(香蕉键)；电子给体	+
8-3	α-H的活性；诱导效应；共轭效应；空间位阻	++
8-4	溶剂解：S_N1机理；碳正离子；超共轭效应；反键轨道；键参数：键长、键级；直立键与平伏键；活化能	+
8-5	Thorpe-Ingold效应；空间位阻；分子内S_N2反应；邻基参与	+++

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Structures and Properties of Organic Compounds: Analysis of Problem 8 of the 35th Chinese Chemistry Olympiad Competition (Preliminary)

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