University Chemistry ›› 2020, Vol. 35 ›› Issue (7): 190-201.doi: 10.3866/PKU.DXHX202004088

Special Issue: 有机化学课程与实验教学

• Self Studies • Previous Articles     Next Articles

Instructional Design on the Competition Reactions between Substitution and Elimination of Haloalkanes

Yunxia Wang, Junlong Zhao, Xiaofeng Gou, Ling Zhou, Lanying Wang()   

  • Received:2020-04-20 Accepted:2020-06-01 Published:2020-06-05
  • Contact: Lanying Wang


In the substitution and elimination reactions of haloalkanes, the attacking reagents are all negatively charged entities or multi-electron groups, so the competition reaction between substitution and elimination of haloalkanes is the key and difficult part of the teaching content. This article introduces the organization and design of this part of teaching contents, so that students can better understand and grasp this part including the influence of reaction substrates, attacking reagents and reaction conditions on dominant reactions and products. The instructional design plays an important role in training students' ability of analysis, thinking and flexible application of knowledge.

Key words: Haloalkane, Substitution reaction, Elimination reaction, Competition reaction, Instructional design


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