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Diels-Alder Visualization Several computer animations of a Diels-Alder reaction that were created as an undergraduate student project are presented.
Addition Reactions |
Alkenes
Addition Reactions of Alkenes The Diels-Alder reaction, addition of oxygen to tetrakis(N, N-dimethylamino) ethylene, polymerization of ethylene, and addition of iodine to a-pinene are demonstrated. Molecular models of ethene are shown.
Biochemistry : LipidRole (10 Variations) Which aspect of the structure of a phospholipid is most directly responsible for its role as a source of some vitamins?
Quantitative Measurement of Trans-Fats by Infrared SpectroscopyEdward B. Walker, Don R. Davies, and Mike Campbell FTIR-ATR spectroscopy provides an efficient analytical tool to measure the percentage of trans-fat in several commercially available lipids and the degree of alkene isomerization induced by brominationdebromination chemical reactions. Walker, Edward B.; Davies, Don R.; Campbell, Mike. J. Chem. Educ.2007, 84, 1162.
Alkenes |
Calibration |
Food Science |
Instrumental Methods |
IR Spectroscopy |
Lipids |
Quantitative Analysis |
Fatty Acids
Regiospecific Epoxidation of Carvone: A Discovery-Oriented Experiment for Understanding the Selectivity and Mechanism of Epoxidation ReactionsKendrew K. W. Mak, Y. M. Lai, and Yuk-Hong Siu Peroxy acids and alkaline H2O2 are two commonly used reagents for alkene epoxidation. The former react preferentially with electron-rich alkenes while the latter works better with a,-unsaturated carbonyl compounds. The selectivity of these two reagents on carvone, a naturally occurring compound that contains both types of C=C bonds, is investigated. Mak, Kendrew K. W.; Lai, Y. M.; Siu, Yuk-Hong. J. Chem. Educ.2006, 83, 1058.
Alkenes |
Chromatography |
Epoxides |
IR Spectroscopy |
NMR Spectroscopy |
Synthesis |
Mechanisms of Reactions
Ozonolysis Problems That Promote Student ReasoningRay A. Gross Jr. The structural features inherent in acyclic monoterpenes that follow the isoprene rule often lead to unique sets of ozonolysis products from which their structures, excluding stereochemistry, can be determined from molecular formulas only. This article shows how students may elucidate the structures of these compounds by analysis of the oxidative and reductive workup products. Gross, Ray A., Jr. J. Chem. Educ.2006, 83, 604.
