Buchwald–Hartwig Amination, High-Throughput Experimentation, and Process Chemistry: An Introduction via Undergraduate Laboratory Experimentation

Buchwald–Hartwig Amination, High-Throughput Experimentation, and Process Chemistry: An Introduction via Undergraduate Laboratory Experimentation
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Buchwald—Hartwig 胺化、高通量实验和过程化学:本科生实验室实验介绍

DOI:
10.1021/acs.jchemed.0c01355
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发表时间:
2021
影响因子:
3
通讯作者:
Rojas, Anthony J.
Rojas, Anthony J.
中科院分区:
化学2区
文献类型:
--
作者:
Wathen, Bailee;Lanehart, Emily;Woodis, Lena A.;Rojas, Anthony J.

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本实验分为三部分,透过引导探究学习策略,探讨Buchwald-Hartwig胺化交叉偶合反应的关键方面。本实验的第一部分利用高通量实验技术来加强,探索和扩展在课堂上所代表的基本概念,包括使用无空气Schlenk技术和异相NMR分析。第二部分要求学生评估他们的结果,以设计,设置和执行一个具有竞争力的规模Buchwald-Hartwig胺化。最后,学生使用柱色谱法纯化和分离他们的产品,使他们能够通过各种分析技术充分表征他们的目标分子。本实验是四年级本科化学课程的最后一个实验之一,为学生提供了一个顶峰的学习体验。
This three-part laboratory experiment investigates key aspects of the Buchwald–Hartwig amination cross-coupling reaction through guided-inquiry learning strategies. The first part of this experiment utilizes high-throughput experimentation techniques to reinforce, explore, and extend fundamental concepts that are represented in the classroom, including the use of air-free Schlenk techniques and heteronuclear NMR analysis. The second component challenges students to evaluate their results to design, set up, and perform a preparative-scale Buchwald–Hartwig amination. Finally, students purify and isolate their products using column chromatography allowing them to fully characterize their target molecules through a variety of analytical techniques. This experiment represents one of the final experiments performed in the fourth-year undergraduate chemistry curriculum and serves as a capstone learning experience for students.
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