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Aromatic Compounds A molecular model of benzene, the reactions of bromine with cylohexane, cyclohexene, benzene, phenol, and toluene, the effect of substituents and number of methyl groups on the electron density of aromatic rings, and chlorination reactions of methyl benzenes are demonstrated.
Aromatic Compounds
Phenols and Quinones Ferric chloride test for phenols, nitration of acetaminophen, extraction of dichloroindophenol, oxidation of phenols with sodium periodate, nucleophilic addition to quinones, "purple benzene", oxidation of 2,6-Dit-butlhydoquinone, decolorization of crystal violet, and chameleon emulsion are demonstrated.
A More Challenging Interpretative Nitration Experiment Employing Substituted Benzoic Acids and AcetanilidesEdward M. Treadwell and Tung-Yin Lin An experiment is described involving the nitration of ortho or meta, monosubstituted benzoic acids and monochlorinated acetanilides with nitric acid to evaluate the regioselectivity of addition through computational methods and 1H NMR spectroscopy. Treadwell, Edward M.; Lin, Tung-Yin. J. Chem. Educ.2008, 85, 1541.
Aromatic Compounds |
Computational Chemistry |
Electrophilic Substitution |
Molecular Modeling |
NMR Spectroscopy |
Synthesis
A Green, Guided-Inquiry Based Electrophilic Aromatic Substitution for the Organic Chemistry LaboratoryEric Eby and S. Todd Deal This alternative, electrophilic aromatic substitutionan iodination reaction of salicylamide, a popular analgesicuses environmentally friendly reagents and serves as a guided-inquiry experiment in which students are asked to predict the orientation of the substitution reaction and determine the product's structure using FT-IR spectroscopy. Eby, Eric; Deal, S. Todd. J. Chem. Educ.2008, 85, 1426.
Aromatic Compounds |
Constitutional Isomers |
Electrophilic Substitution |
Green Chemistry |
IR Spectroscopy |
Synthesis
Discovering Electronic Effects of Substituents in Nitrations of Benzene Derivatives Using GC–MS AnalysisMalgorzata M. Clennan and Edward L. Clennan Describes an organic lab in which students pool mass spectral data to identify the distribution of isomer products generated by the nitration of six benzene derivatives whose substituents differ in their electronic effects. Students also determine which substituents direct nitration predominantly to the ortho- or para- and to the meta positions. Clennan, Malgorzata M.; Clennan, Edward L. J. Chem. Educ.2007, 84, 1679.
Aromatic HydrocarbonsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Aromatic Compounds
Conjugated SystemsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Aromatic Compounds
ChemPaths 104 W Feb 23John W. Moore Today in Chem 104:
* Lecture: Mechanisms of Reactions
* Reading:
Kotz, Ch. 15, Sec. 5-6
Moore, Ch. 13, Sec. 6-76
* Homework #5 due by 11:55 pm F Feb 25
* Excel Assignment due in first discussion section this week
* Quiz 4 in second discussion section this week
