Analyzing Some Doubts About Organic Chemistry Module of National Chemistry Olympiad for Students
NI Jue-Chen1, LI Jin-Hua2*
1. MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; 2. Tianjin No.1 High School, Tianjin 300051, China
Abstract Some common problems in the organic chemistry module of the Olympiad chemistry competition for senior high school students are analyzed. Combining the test questions of the National Chemistry Olympiad, this paper explaines five questions: whether the methyl group has steric hindrance, whether the oxygen cation intermediate is stable, the difference between intermediates and transition states, which is easier to open a five-membered ring or a seven-membered ring, and 1-chlorobicyclo [2.2.1]heptane and 1-chlorobicyclo[2.2.2]octane which is prone to substitution reaction. It is emphasized that the essence of organic modules in the competition is the flexible application of basic knowledge. In order to achieve ideal results, candidates need to consolidate basic knowledge in the learning process and improve their thinking ability.
NI Jue-Chen, LI Jin-Hua. Analyzing Some Doubts About Organic Chemistry Module of National Chemistry Olympiad for Students[J]. Chinese Journal of Chemical Education, 2023, 44(9): 125-128.
