Chinese Journal of Applied Chemistry ›› 2025, Vol. 42 ›› Issue (7): 993-1001.DOI: 10.19894/j.issn.1000-0518.240237

• Chemistry Teaching and Experiment Innovation • Previous Articles     Next Articles

Synthesis of 2-(3-Methyl-2-pyrazinyl)-1-phenylacetopheno: Recommending a Scientific Training Experiment

Peng WANG1, Jian LIN1, Lin-Kai WU1, Wan-Yu BAI1, Ya-Fei XIN1, Xia CHEN1,2()   

  1. 1.College of Chemistry and Chemical Engineering,Shanxi University,Taiyuan 030006,China
    2.Shanxi Key Laboratory for the Green Catalysis Synthesis of Coal-based Value-added Chemicals,Shanxi University,Taiyuan 030006,China
  • Received:2024-07-29 Accepted:2025-04-04 Published:2025-07-01 Online:2025-07-23
  • Contact: Xia CHEN
  • About author:chenxia@sxu.edu.cn
  • Supported by:
    the National First-Class Undergraduate Teaching Course(2020230413);Shanxi Higher Education Excellent Shared Course(K2020024);Shanxi Higher Education Teaching Reform and Innovation Project(J20240133);the 2023 Shanxi Postgraduate Education and Teaching Reform Project(2023JG010)

Abstract:

Anhydrous and oxygen-free techniques are very important synthetic methods in organic chemical synthesis, offering higher-level scientific training content compared to the basic laboratory teaching content. In this paper, the operational procedures and safety protocols of Schlenk line technique and its application in organic synthesis were introduced using the synthesis of 2-(3-methyl-2-pyrazinyl)-1-phenylethanone as an example. The structure of the compound was determined via1H and 13C NMR spectroscopy, which revealed the presence of enol and ketone tautomers. The reaction mechanism was discussed in detail, and the relationship between the color changes and product structures was investigated. This training module not only enhances students' proficiency in handling air- and moisture-sensitive reagents but also reinforces stringent safety protocols. By analyzing the structure of compound and discussing the reaction mechanism, students deepen their application of fundamental knowledge, enhance problem-solving abilities, and cultivate innovative thinking.

Key words: Scientific research and training, Anhydrous and oxygen-free techniques, Synthesis, Characterization

CLC Number: