第38届中国化学奥林匹克(初赛)第9题芳香亲电取代试题解析

doi:10.12461/PKU.DXHX202506075

University Chemistry ›› 2026, Vol. 41 ›› Issue (7): 468-474.doi: 10.12461/PKU.DXHX202506075

• Chemical Olympiad Competition • Previous Articles

Analysis of Question 9 on electrophilic aromatic substitution from the 38th China Chemistry Olympiad (Preliminary)

Chaojie Li¹, Peng Fei², Yanhui Sun³

1 Zhuhai No. 4 Middle School, Zhuhai 519015, Guangdong Province, China;
2 Zhuhai No. 2 Middle School, Zhuhai 519099, Guangdong Province, China;
3 School of Chemistry, South China Normal University, Guangzhou 510000, Guangdong Province, China

Received:2025-06-18 Accepted:2025-08-19 Published:2026-06-27
Contact: Chaojie Li E-mail:lichj26@mail3.sysu.edu.cn

Abstract

Abstract: This paper conducts an in-depth analysis of the organic chemistry question (Question 9) from the 38th China Chemistry Olympiad (Preliminary), which primarily examines aromatic electrophilic substitution reactions. Focusing on the application of electronic effects, directing effects, and mechanisms of electrophilic substitution reactions in problem-solving, the study aims to provide valuable references for chemical competition training and enhance comprehensive understanding of aromatic electrophilic substitution reaction mechanisms.

Key words: Chemistry, Olympics, Test question analysis, Electrophilic aromatic substitution

Chaojie Li, Peng Fei, Yanhui Sun. Analysis of Question 9 on electrophilic aromatic substitution from the 38th China Chemistry Olympiad (Preliminary)[J].University Chemistry, 2026, 41(7): 468-474.

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Analysis of Question 9 on electrophilic aromatic substitution from the 38th China Chemistry Olympiad (Preliminary)

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