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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.
Zeroing In on Electrophilic Aromatic SubstitutionDavid C. Forbes, Mohini Agarwal, Jordan L. Ciza, and Heather A. Landry Presents a unique and novel illustration of reactivity trends in the formation of trisubstituted benzene derivatives from disubstituted systems using electrophilic aromatic substitution reactions. Forbes, David C.; Agarwal, Mohini; Ciza, Jordan L.; Landry, Heather A. J. Chem. Educ.2007, 84, 1878.
Aromatic Compounds |
Constitutional Isomers |
Electrophilic Substitution |
Reactions
Synthesis of Triarylmethane and Xanthene Dyes Using Electrophilic Aromatic Substitution ReactionsJames V. McCullagh and Kelly A. Daggett In this experiment, electrophilic aromatic substitution reactions are used to synthesize several triarylmethane and xanthene dyes (fluorescein, erythrosin B, thymolphthalein, and rhodamine B) using common equipment while avoiding often troublesome, hydroscopic Lewis acids. Subsequent UVvis analysis produce spectra that match commercially available dye samples. McCullagh, James V.; Daggett, Kelly A. J. Chem. Educ.2007, 84, 1799.
Acids / Bases |
Aromatic Compounds |
Dyes / Pigments |
Electrophilic Substitution |
Equilibrium |
Synthesis |
UV-Vis Spectroscopy
Teaching a Modified Hendrickson, Cram, and Hammond Curriculum in Organic ChemistryJoel M. Karty, Gene Gooch, and B. Gray Bowman Describes a new organic chemistry curriculum in which fundamental concepts are introduced before mechanisms, and mechanisms are introduced before reactions. Reactions are introduced according to similarities among mechanisms rather than the functional group involved. Karty, Joel M.; Gooch, Gene; Bowman, B. Gray. J. Chem. Educ.2007, 84, 1209.
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
