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Nucleophilic Aromatic Substitution, A Guided Inquiry Laboratory Experiment. 亲核芳烃取代,引导探究实验室实验。
Pub Date : 2010-01-01
Leyte L Winfield

Inquiry-based learning is a unique student-centered alternative to traditional instruction. This form of active learning is ideal for the organic chemistry laboratory as it encourages critical thinking and hands on problem solving to complete an experiment. Electrophilic Aromatic Substitution is immediately associated with the undergraduate organic chemistry course. However, nucleophilic aromatic substitution is not. The N-arylation of aniline derivatives is a useful reaction for implementing nucleophilic aromatic substitution into the undergraduate curriculum. Under the framework of inquiry-based learning, a straightforward procedure has been developed for the undergraduate laboratory. This experiment explores the reaction rate of the nucleophilic aromatic substitution using various electrophiles. The reaction is conducted under microwave irradiation and the experiment is completed in one laboratory setting.

探究式学习是一种独特的以学生为中心的传统教学替代方案。这种形式的主动学习非常适合有机化学实验室,因为它鼓励批判性思维和动手解决问题来完成实验。亲电芳香取代与本科有机化学课程密切相关。然而,亲核芳香族取代不是。苯胺衍生物的n -芳基化反应是在本科课程中实现亲核芳香取代的有用反应。在探究性学习的框架下,为本科实验室开发了一个简单的程序。本实验探讨了不同亲电试剂的亲核芳香族取代反应速率。反应在微波照射下进行,实验在一个实验室环境中完成。
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Chemical educator (Boise, Idaho)
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