| Journal Articles: 38 results |
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The Synthesis of a Cockroach Pheromone Patty L. Feist This paper describes the synthesis of gentisyl quinone isovalerate or blattellaquinone, a sex pheromone of the German cockroach and a compound with real-world applications. The experiment also affords students practice in extraction as well as IR and NMR spectroscopy. Feist, Patty L. J. Chem. Educ. 2008, 85, 1548.
Esters |
IR Spectroscopy |
Natural Products |
NMR Spectroscopy |
Oxidation / Reduction |
Synthesis
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The Comparative Nucleophilicity of Naphthoxide Derivatives in Reactions with a Fast-Red TR Dye Cheryl M. Mascarenhas In this experiment, organic chemistry students perform reactions between three naphthyl acetate derivatives and the diazonium salt Fast-Red TR. Students discover under what conditions the hydrolysis and electrophilic aromatic substitution is fastest and slowest, allowing them to conclude that latter, rather than the former, is rate-limiting. Mascarenhas, Cheryl M. J. Chem. Educ. 2008, 85, 1271.
Alcohols |
Aromatic Compounds |
Dyes / Pigments |
Esters |
IR Spectroscopy |
NMR Spectroscopy |
Synthesis |
Thin Layer Chromatography |
UV-Vis Spectroscopy
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The Preparation and Enzymatic Hydrolysis of a Library of Esters Elizabeth M. Sanford and Traci L. Smith In this investigative case study, students work collaboratively to prepare and characterize a library of esters using Fischer esterification and alcoholysis of acid chlorides and their subsequent enzymatic hydrolysis by pig liver and orange peel esterases. Sanford, Elizabeth M.; Smith, Traci L. J. Chem. Educ. 2008, 85, 944.
Drugs / Pharmaceuticals |
Enzymes |
Esters |
Industrial Chemistry |
IR Spectroscopy |
NMR Spectroscopy |
Synthesis |
Thin Layer Chromatography
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The Baeyer–Villiger Oxidation with Trifluoroacetic Acid and Household Sodium Percarbonate Richard A. Kjonaas and Anthony E. Clemons Reports a method for carrying out the BaeyerVilliger oxidation of cyclopentanone to d-valerolactone in a large-section introductory organic chemistry laboratory course. Kjonaas, Richard A.; Clemons, Anthony E. J. Chem. Educ. 2008, 85, 827.
Aldehydes / Ketones |
Esters |
NMR Spectroscopy |
Oxidation / Reduction |
Synthesis
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Determination of Hammett Equation Rho Constant for the Hydrolysis of p-Nitrophenyl Benzoate Esters Sheue L. Keenan, Karl P. Peterson, Kelly Peterson, and Kyle Jacobson In this experiment, seven p-nitrophenyl benzoate esters are synthesized and characterized. Students then measure the rate constants for the base hydrolysis of these esters using UV-vis spectrophotometry and determine the Hammett equation constant for this hydrolysis reaction. Keenan, Sheue L.; Peterson, Karl P.; Peterson, Kelly; Jacobson, Kyle. J. Chem. Educ. 2008, 85, 558.
Aromatic Compounds |
Esters |
IR Spectroscopy |
Kinetics |
Synthesis |
UV-Vis Spectroscopy
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Developing Critical Thinking Skills: The "Sabotaged" Synthesis of Methyl p-Bromobenzoate Eric J. Mahan and Mary Alice Nading Before beginning an experiment, students are told that someone might have sabotaged their experiment to produce other-than-expected results. The objective is to perform the experiment, determine if any sabotage has occurred, and, if so, identify the changes that were made to the reagents as well as the person responsible. Mahan, Eric J.; Nading, Mary Alice. J. Chem. Educ. 2006, 83, 1652.
Alcohols |
Carboxylic Acids |
Esters |
IR Spectroscopy |
NMR Spectroscopy |
Mass Spectrometry |
Synthesis
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A Simple Combinatorial Experiment Based on Fischer Esterification. An Experiment Suitable for the First-Semester Organic Chemistry Lab Peter A. Wade, Susan A. Rutkowsky, and Daniel B. King Describes a combinatorial experiment for the synthesis of esters by Fischer esterification in which a total of eight esters are prepared as six mixtures. Wade, Peter A.; Rutkowsky, Susan A.; King, Daniel B. J. Chem. Educ. 2006, 83, 927.
Alcohols |
Carboxylic Acids |
Combinatorial Chemistry |
Equilibrium |
Esters |
Gas Chromatography |
Synthesis
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A Greener Approach to Aspirin Synthesis Using Microwave Irradiation Ingrid Montes, David Sanabria, Marilyn García,, Joaudimir Castro, and Johanna Fajardo Presents an inquiry-based laboratory experience based on the use of a microwave oven as a means for a comparative study of the effect of different catalysts in the synthesis of aspirin. Montes, Ingrid; Sanabria, David; García,, Marilyn; Castro, Joaudimir; Fajardo, Johanna. J. Chem. Educ. 2006, 83, 628.
Drugs / Pharmaceuticals |
Esters |
Green Chemistry |
NMR Spectroscopy |
Reactions |
Synthesis |
Thin Layer Chromatography
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4-Dimethylaminopyridine or Acid-Catalyzed Syntheses of Esters: A Comparison Annemieke W. C. van den Berg and Ulf Hanefeld Students compare acid-catalyzed ester synthesis and the 4-dimethylaminopyridine-catalyzed reaction. Based on the outcome of the experiments, students discuss the different reaction mechanisms and reason why different products are formed. van den Berg, Annemieke W. C.; Hanefeld, Ulf. J. Chem. Educ. 2006, 83, 292.
Acids / Bases |
Catalysis |
Chromatography |
Esters |
IR Spectroscopy |
NMR Spectroscopy |
Mass Spectrometry |
Synthesis |
Mechanisms of Reactions
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Fluorous Compounds and Their Role in Separation Chemistry Maria Angeles Ubeda and Roman Dembinski Reviews fluorous technology and outlines strategies towards organic synthesis. Ubeda, Maria Angeles; Dembinski, Roman. J. Chem. Educ. 2006, 83, 84.
Amino Acids |
Catalysis |
Esters |
Green Chemistry |
Separation Science |
Synthesis
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A Solvent-Free Baeyer–Villiger Lactonization for the Undergraduate Organic Laboratory: Synthesis of γ-t-Butyl-ε-caprolactone John J. Esteb, J. Nathan Hohman, Diana E. Schlamadinger, and Anne M. Wilson The BaeyerVilliger reaction provides an efficient method to convert ketones to esters or lactones. In this experiment, m-chloroperoxybenzoic acid and 4-tert-butylcyclohexanone are mixed together for under solvent-free conditions to produce ?-t-butyl-e-caprolactone. Esteb, John J.; Hohman, J. Nathan; Schlamadinger, Diana E.; Wilson, Anne M. J. Chem. Educ. 2005, 82, 1837.
Green Chemistry |
Synthesis |
Esters |
Oxidation / Reduction
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A GC–MS Analysis of an SN2 Reaction for the Organic Laboratory Malgorzata M. Clennan and Edward L. Clennan This experiment utilizes an SN2 reaction between an alkyl bromide and potassium acetate to introduce the use of mass spectrometry for structural identification. It also provides students with experience in organic synthesis, the use of IR to identify functional groups, and the use of gas chromatography and response factors to determine product ratios. Clennan, Malgorzata M.; Clennan, Edward L. J. Chem. Educ. 2005, 82, 1676.
IR Spectroscopy |
Mass Spectrometry |
Synthesis |
Chromatography |
Esters |
Mechanisms of Reactions |
Microscale Lab |
Gas Chromatography
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The Discovery-Oriented Approach to Organic Chemistry. 6. Selective Reduction in Organic Chemistry: Reduction of Aldehydes in the Presence of Esters Using Sodium Borohydride Ashvin R. Baru and Ram S. Mohan Describes two discovery oriented lab experiments involving the chemoselective reduction of vanillin acetate and methyl 4-formylbenzoate in the presence of esters using sodium borohydride, followed by product identification using 1H and 13C NMR spectroscopy. Baru, Ashvin R.; Mohan, Ram S. J. Chem. Educ. 2005, 82, 1674.
NMR Spectroscopy |
Alcohols |
Aldehydes / Ketones |
Esters |
Oxidation / Reduction |
Thin Layer Chromatography |
Synthesis
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Spectroscopic Properties of Some Simple Esters. A Practical Application of Synthesis and Spectroscopy in the Undergraduate Organic Laboratory David P. Brown, Haris Durutlic, and Didier Juste This exercise, the synthesis and spectroscopic analysis of the allyl esters of some aromatic carboxylic acids, consists of a series of open-ended experiments. Brown, David P.; Durutlic, Haris; Juste, Didier. J. Chem. Educ. 2004, 81, 1016.
Esters |
Synthesis |
NMR Spectroscopy |
IR Spectroscopy |
Chromatography
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Synthesis of Chemiluminescent Esters: A Combinatorial Synthesis Experiment for Organic Chemistry Students Robert Duarte, Janne T. Nielsen, and Veljko Dragojlovic In this laboratory exercise, a peroxyoxalate chemiluminescence experiment has been integrated with a combinatorial synthesis experiment. Duarte, Robert; Nielsen, Janne T.; Dragojlovic, Veljko. J. Chem. Educ. 2004, 81, 1010.
Esters |
Synthesis |
Molecular Properties / Structure
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A Solvent-Free Claisen Condensation Reaction for the Organic Laboratory John J. Esteb and Matthew B. Stockton An experiment involving the Claisen condensation reaction for a first-year organic chemistry laboratory is presented. In this experiment, potassium tert-butoxide and ethyl phenylacetate are heated to 100 C for 30 minutes under solvent-free conditions to produce 2,4-diphenyl acetoacetate in 80% yield. Esteb, John J.; Stockton, Matthew B. J. Chem. Educ. 2003, 80, 1446.
Synthesis |
Esters
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Organic Functional Group Playing Card Deck Michael J. Welsh Organic functional group playing card deck used for review of the name and structure of organic functional groups that can be used to play any game that a normal deck of cards is used for. Welsh, Michael J. J. Chem. Educ. 2003, 80, 426.
Nomenclature / Units / Symbols |
Nonmajor Courses |
Enrichment / Review Materials |
Alcohols |
Aldehydes / Ketones |
Alkanes / Cycloalkanes |
Alkenes |
Alkynes |
Amides |
Amines / Ammonium Compounds |
Aromatic Compounds |
Carboxylic Acids |
Esters |
Ethers |
Mechanisms of Reactions |
Synthesis
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An Organic Puzzle Using Meldrum's Acid R. David Crouch and Michael S. Holden Organic synthesis in which the product is not easily predicted, requiring identification through an analysis of the data and consideration of possible reactions of the reagents and solvent. Crouch, R. David; Holden, Michael S. J. Chem. Educ. 2002, 79, 477.
NMR Spectroscopy |
Synthesis |
Microscale Lab |
Esters |
Synthesis
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The Biginelli Reaction Michael S. Holden and R. David Crouch Procedure illustrating the Biginelli reaction. Holden, Michael S.; Crouch, R. David. J. Chem. Educ. 2001, 78, 1104.
Microscale Lab |
Synthesis |
Reactions |
Mechanisms of Reactions |
Esters |
Heterocycles
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The Oxidation of Primary Alcohols to Esters: Three Related Investigative Experiments Chriss E. McDonald
McDonald, Chriss E. J. Chem. Educ. 2000, 77, 750.
Oxidation / Reduction |
Alcohols |
Esters |
Synthesis |
Mechanisms of Reactions
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Microwave Irradiation Reactions: Synthesis of Analgesic Drugs Gholam A. Mirafzal and Jolene M Summer Over-the-counter analgesics such as aspirin, acetanilide, phenacetin, and acetaminophen are conveniently prepared in a microwave at 30% power for five minutes. Recrystallization from appropriate solvents results in solid products in good to excellent yields. Mirafzal, Gholam A.; Summer, Jolene M. J. Chem. Educ. 2000, 77, 356.
Drugs / Pharmaceuticals |
Synthesis |
Medicinal Chemistry |
Aromatic Compounds |
Amines / Ammonium Compounds |
Esters
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Parallel Combinatorial Esterification: A Simple Experiment for Use in the Second-Semester Organic Chemistry Laboratory David M. Birney and Stephen D. Starnes This simple experiment utilizes the Fischer esterification, a common reaction in second-semester organic laboratories, to demonstrate the fundamentals of combinatorial methods. These include simultaneous synthesis of numerous compounds, a selective assay for a desired activity, and an algorithm for identifying the active structure. Using a parallel synthesis combinatorial method, each student in a lab section prepares a different ester. Birney, David M.; Starnes, Stephen D. J. Chem. Educ. 1999, 76, 1560.
Synthesis |
Natural Products |
Biotechnology |
Descriptive Chemistry |
Esters |
Combinatorial Chemistry
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"New" Compounds from Old Plastics: Recycling PET Plastics via Depolymerization. An Activity for the Undergraduate Organic Lab Don Kaufman, Geoff Wright, Ryan Kroemer, and Josh Engel This paper describes work done to develop a meaningful undergraduate organic lab activity that illustrates chemistry of the real world while utilizing reactions typically included in the organic lecture and lab. We show how a common plastic can be converted into several compounds using ester hydrolysis and SN2 reactions. Kaufman, Don; Wright, Geoff; Kroemer, Ryan; Engel, Josh. J. Chem. Educ. 1999, 76, 1525.
Consumer Chemistry |
Synthesis |
Esters |
Nucleophilic Substitution
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An Efficient Microscale Procedure for the Preparation of 3,5-Dinitrobenzoates Smith, Richard F.; Cristalli, Gaetano M. Efficient and simple microscale preparation of 3,5-dinitrobenzoates. Smith, Richard F.; Cristalli, Gaetano M. J. Chem. Educ. 1995, 72, A164.
Synthesis |
Qualitative Analysis |
Laboratory Management |
Microscale Lab |
Aromatic Compounds |
Esters
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Microwave Synthesis of Tetraphenylcyclopentadienone and Dimethyl Tetraphenylphthalate Elder, John W. Procedure for using a microwave to synthesize tetraphenylcyclopentadienone and dimethyl tetraphenylphthalate. Elder, John W. J. Chem. Educ. 1994, 71, A142.
Microscale Lab |
Laboratory Equipment / Apparatus |
Synthesis |
Aromatic Compounds |
Esters |
Amines / Ammonium Compounds
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A More Affordable Undergraduate Experiment on the Reduction of Acetophenone by Yeast Lee, Moses; Huntington, Martha Preparation of Mosher's esters through the reduction of acetophenone with baker's yeast. Lee, Moses; Huntington, Martha J. Chem. Educ. 1994, 71, A62.
Microscale Lab |
Aromatic Compounds |
Aldehydes / Ketones |
Oxidation / Reduction |
Stereochemistry |
Chirality / Optical Activity |
Esters |
Synthesis
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Determining Hammett sigma and rho values: Improvements on a published student experiment Hathaway, Bruce A.; Olesen, Bjorn Modifications and improvements to laboratory experiments written for an organic chemistry lab text. Hathaway, Bruce A.; Olesen, Bjorn J. Chem. Educ. 1993, 70, 953.
Esters |
Acids / Bases |
Kinetics |
Synthesis
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Beta-keto esters from tin(II) chloride catalyzed reactions of aldehydes with ethyl diazoacetate: An undergraduate laboratory experiment drawn from the current literature Brockwell, Joyce C.; Holmquist, Christopher R. This is an experimental procedure for producing longer-chain keto esters from unconjugated aldehydes on reaction with ethyl diazoacetate catalyzed by Lewis acids for use in an undergraduate laboratory. Brockwell, Joyce C.; Holmquist, Christopher R. J. Chem. Educ. 1992, 69, 68.
Catalysis |
Synthesis |
Lewis Acids / Bases |
Aldehydes / Ketones |
Esters
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Demonstrating organic synthesis with familiar materials Rothenberger, Otis; Bunting, Roger; Newton, Thomas Two chemical synthesis demonstrations for elementary, high school, college, and adult audiences. Rothenberger, Otis; Bunting, Roger; Newton, Thomas J. Chem. Educ. 1991, 68, 502.
Synthesis |
Esters |
Natural Products
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Synthesis of 5-nitrofurfural diacetate and 5-nitrofurfural semicarbazone: An undergraduate laboratory experiment Li, Xiaorong; Liu, Qianguang; Chang, James C. Demonstrates how to nitrate an aromatic compound having an aldehyde group that can be oxidized by nitrating agents. Li, Xiaorong; Liu, Qianguang; Chang, James C. J. Chem. Educ. 1990, 67, 986.
Synthesis |
Aldehydes / Ketones |
Esters |
Ethers |
Electrophilic Substitution |
Aromatic Compounds |
NMR Spectroscopy
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Microscale synthesis of heterocyclic compounds Al-awar, Rima; Wahl, George H., Jr. The authors describe microscale syntheses of four heterocyclic compounds for which large-scale versions were described previously in this Journal. Al-awar, Rima; Wahl, George H., Jr. J. Chem. Educ. 1990, 67, 265.
Microscale Lab |
Heterocycles |
Esters |
Aromatic Compounds |
Synthesis
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A synthesis of chrysanthemic ester: An undergraduate experiment Kelly, Lawrence F. Procedure for producing a mixture of cis- and trans-ethyl chrysanthemates. Kelly, Lawrence F. J. Chem. Educ. 1987, 64, 1061.
Esters |
Synthesis |
Catalysis |
Diastereomers |
Stereochemistry
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Purification by sub-zero temperature washing Chu, Samuel S.-T. Separating an ester from the carboxylic acid from which it was synthesized. Chu, Samuel S.-T. J. Chem. Educ. 1979, 56, 384.
Synthesis |
Esters |
Carboxylic Acids |
Laboratory Management
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Phase transfer catalysis. Part II: Synthetic applications Gokel, George W.; Weber, William P. In this month's continuation of an article, the authors have catalogued a number of illustrative examples so that the range of applicability of phase transfer catalysis will be. Gokel, George W.; Weber, William P. J. Chem. Educ. 1978, 55, 429.
Phases / Phase Transitions / Diagrams |
Catalysis |
Aromatic Compounds |
Organometallics |
Nucleophilic Substitution |
Synthesis |
Esters |
Oxidation / Reduction |
Alkylation
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Alkylation of methyl acetoacetate and gas chromatographic analysis of products. An organic laboratory experiment Schimelpfenig, C. W. Substituting commercially available sodium methoxide, absolute methanol, and methyl acetoacetate for sodium, ethanol, and acetoacetic ester in the acetoacetic ester synthesis of ketones and acids and the malonic ester synthesis of acids. Schimelpfenig, C. W. J. Chem. Educ. 1977, 54, 446.
Gas Chromatography |
Chromatography |
Separation Science |
Synthesis |
Esters |
Laboratory Management
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Kinetics of condensation polymerization: Preparation of a polyester McCaffery, Edward L. This experiment involves determining the reaction-rate constant for a condensation polymerization. McCaffery, Edward L. J. Chem. Educ. 1969, 46, 59.
Kinetics |
Polymerization |
Synthesis |
Esters |
Rate Law
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Enamine reactions for the undergraduate organic laboratory: A student water separator Darling, S. D. This note describes the design and efficiency of a device that facilitates the removal of water in reactions such as enamine preparation or esterfications. Darling, S. D. J. Chem. Educ. 1966, 43, 665.
Laboratory Equipment / Apparatus |
Amines / Ammonium Compounds |
Esters |
Synthesis |
Separation Science
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Esterification for the introductory organic laboratory course: A modified Dean-Stark trap Puterbaugh, W. H.; Vanselow, C. H.; Nelson, K.; Shrawder, E. J. Describes a simplified construction for a Dean-Stark trap and its use to determine optimum conditions for the preparation of n-amul acetate. Puterbaugh, W. H.; Vanselow, C. H.; Nelson, K.; Shrawder, E. J. J. Chem. Educ. 1963, 40, 349.
Esters |
Synthesis
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