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Pramod Kumar; Biplab Maji – Journal of Chemical Education, 2024
Discussion-based outcomes of organic chemistry laboratory experiments form a powerful tool to create a learning environment, facilitate teamwork, and build scientific skills and analytical ability for undergraduate science students. A Knoevenagel-type condensation reaction was selected to demonstrate these results by taking phenylacetonitrile and…
Descriptors: Organic Chemistry, Science Laboratories, Science Experiments, Laboratory Experiments
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Julius Pavlov; Ramu Errabelli; Sihang Xu; Zhaoyu Zheng; David Douce; Steve Bajic; Athula B. Attygalle – Journal of Chemical Education, 2023
The helium-plasma (HePI) ionization mass spectrometry method was used to track the formation of reaction products and consumption of reactants by continually monitoring the vapors in the reaction headspace in real time. Two examples of the application procedure are presented here: a nucleophilic acyl substitution reaction and a 1,4-nucleophilic…
Descriptors: Organic Chemistry, Chemistry, Science Instruction, Science Experiments
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Sigurdur Gudni Gunnarsson; So´lru´n Eli´n Freygardsdo´ttir; O´skar Rudolf Kettler; Benjami´n Ragnar Sveinbjo¨rnsson – Journal of Chemical Education, 2023
Laboratory experiments provide training to students in experimental techniques and strengthen the understanding of the theory. Herein, a new introductory experiment for organic chemistry laboratory courses is described where students are trained in washing an unknown neutral organic compound using liquid/liquid extraction, isolating it via…
Descriptors: Science Instruction, Science Experiments, Organic Chemistry, Program Effectiveness
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Kylie L. Luska – Journal of Chemical Education, 2023
A multioutcome, discovery-based column (CC) and thin layer chromatography (TLC) experiment has been designed for introductory organic chemistry. Multiple outcomes were established using commercially available two- and three-component analgesic medications based on acetaminophen, acetylsalicylic acid (aspirin), and ibuprofen. A series of 11…
Descriptors: Chemistry, Science Experiments, Organic Chemistry, Introductory Courses
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Yongwu He; Mo Chen; Jing Wang; Gaomei Zhao; Songling Han; Yang Xu; Yin Chen; Cheng Wang; Junping Wang – Journal of Chemical Education, 2023
The dangers of organic dye pollutants and environmental pollution improvement through photocatalytic degradation are important courses in applied chemistry programs in universities. Zinc oxide (ZnO)-based nanomaterials are potent catalytic agents against organic dyes, but few experiments are available for students to understand their role and…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Spectroscopy
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Pérez, Juana M.; Ruiz, Cristina; Fernández, Ignacio – Journal of Chemical Education, 2022
NMR spectroscopy is a powerful spectroscopic tool that not only allows the determination of structures after synthesis, as usually explained to students of Organic Chemistry, but also is useful in many other fields such as medicine imaging, real-time industrial processes, material sciences, or metabolomics. In this experiment, students performed a…
Descriptors: Science Instruction, Organic Chemistry, Spectroscopy, Science Experiments
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Alexander J. Wright; Dave Colclough; Hazel Harris; Stefano C. G. Biagini – Journal of Chemical Education, 2023
In this paper, we present a concise and technique-heavy route to the synthesis of dimedone for a second-year organic chemistry curriculum. Our preparation of dimedone guides students through a Michael addition followed by a Dieckmann cyclization, basic ester hydrolysis, and thermal decarboxylation, while allowing time for mechanistic discussion…
Descriptors: Science Instruction, Science Laboratories, Organic Chemistry, Undergraduate Study
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Will Jimy Quintero; Mo´nica Constanza A´vila; Cristian Ochoa-Puentes – Journal of Chemical Education, 2023
Cycloadditions in combination with multicomponent reactions are among the most valuable synthetic tools used by organic chemists to construct cyclic and heterocyclic compounds in a straightforward way. Although cycloadditions, such as the Diels--Alder reaction, are mainly covered in basic and advanced organic courses for undergraduate students,…
Descriptors: Science Instruction, Organic Chemistry, College Science, Undergraduate Students
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Jordan, Annalisa M.; Wilke, Ashley E.; Nguyen, Tanifa L.; Capistrant, Katelyn C.; Zarbock, Katie R.; Batiste Simms, Morgan E.; Winsor, Brandi R.; Wollack, James W. – Journal of Chemical Education, 2022
Multistep synthesis is a key capstone experience in organic laboratory instruction. Here, a four-step synthesis of avobenzone, an active component in sunscreens, has been developed that can be completed in two 4 h laboratory periods. This synthesis incorporates green principles and includes an aldol condensation, electrophilic addition of bromine…
Descriptors: Organic Chemistry, Science Instruction, Laboratory Experiments, Hands on Science
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Arturo Garci´a-Zavala – Journal of Chemical Education, 2023
Poinsettia ("Euphorbia pulcherrima") contains anthocyanins that dissolve in water and exhibit color changes due to changing pH. This property makes the poinsettia extract a useful acid-base indicator for pH demonstrations. When combined with common household materials, this experiment can be used as an alternative low-cost tool in…
Descriptors: Students, Science Instruction, Chemistry, Organic Chemistry
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Yousef, Abraham L.; Smith, Alexis G. – Journal of Chemical Education, 2022
A multistep synthesis of a novel arylidene 3­(2"H")-furanone has been designed and optimized for the second-year organic laboratory. The three-step sequence consists of a nucleophilic substitution, intramolecular cyclization, and acid-catalyzed aldol condensation, and can be carried out within two 3 h laboratory periods. The final…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Experiments, Hands on Science
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Feng Xiong; Ru-Xin Liu; Xiao-Xuan Fan; Min Zhang; Yuan She; Wei-Qing Cao; Chao Chen; Tong-Mei Ding; Shu-Yu Zhang – Journal of Chemical Education, 2023
The demand for sustainable synthetic methods in modern industry has been increasing rapidly due to the requirements of environmental protection and energy conservation, which has brought organic electrochemical synthesis to the forefront nowadays. Here, a two-part laboratory experiment has been designed to train undergraduates in comprehending and…
Descriptors: Organic Chemistry, Science Instruction, Undergraduate Students, Sustainability
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Nahoko Kuroki; Yuji Mochizuki; Hirotoshi Mori – Journal of Chemical Education, 2023
In all fields of chemistry, it has become essential to use quantum chemical calculations and machine learning for explaining and predicting chemical phenomena. However, it is challenging to apply textbook knowledge to practical research. In this study, we developed teaching material based on computational chemistry to promote the integration of…
Descriptors: Chemistry, Science Instruction, Computation, Organic Chemistry
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Philip P. Lampkin; Angie E. Xu; Brian J. Esselman; Cara E. Schwarz; Sebastian D. Thompson; Samuel H. Gellman; Nicholas J. Hill – Journal of Chemical Education, 2024
Synthesis of (Z)-alkenes is challenging because the (E) stereoisomers are usually more stable. Energy transfer photocatalysis has emerged as an efficient strategy for (E) [right arrow] (Z) alkene isomerization. We report the development of an advanced undergraduate laboratory experiment that introduces students to contemporary organic…
Descriptors: Undergraduate Students, Science Instruction, Chemistry, Organic Chemistry
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Sydney Demers; Joshua Fung-A-Fat; Jeremy Andreatta; Margaret E. Kerr; Weichu Xu – Journal of Chemical Education, 2022
Undergraduate organic chemistry laboratory courses act as a baseline for introductory scientific experimentation. These courses provide students with the knowledge and skills for their future careers. The traditional lab is conducted by providing a structured protocol of the experiment for the students to follow and reproduce the assigned task…
Descriptors: Student Research, Student Interests, Undergraduate Students, Organic Chemistry
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