Browsing Chemistry by Author "Mulcahy, Seann P."

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Browsing Chemistry by Author "Mulcahy, Seann P."

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  • Mulcahy, Seann P. (2012-01-03)
    A convenient multi-week experiment that results in the formation of two new stereocenters starting from enantiopure norephedrine as the chiral auxiliary. This experiment uses a variety of purification techniques, including ...
  • Mulcahy, Seann P. (2011-10-11)
    A simple experiment to demonstrate nucleophilic addition to a carbonyl. Sodium borohydride-mediated reduction of fluorenone is a fast and high-yielding reaction that is suitable for beginning students. Students isolate ...
  • Mulcahy, Seann P. (2012-01-03)
    A short aldol condensation reaction that produces differentially-substituted dibenzylideneketones whose UV-Vis spectra can be determined. This experiment allows students to construct structure-activity relationships in the ...
  • Mulcahy, Seann P.; Bishop, Joshua (2011-07-14)
    A simple procedure for the isolation of caffeine from energy drinks by solid phase extraction on a C18 cartridge. Quantitative analysis of the amount of caffeine by LC/MS is determined by referencing a standard curve.
  • Mulcahy, Seann P. (2012-01-03)
    A microwave-accelerated synthesis of volatile aromatic esters is described in this convenient Fisher esterification reaction. Students perform a liquid-liquid extraction to isolate crude product which they purify by ...
  • Mulcahy, Seann P. (2011-10-15)
    An introductory laboratory on the identification of analgesics in an unknown sample. Ideal for the first week of an organic chemistry sequence to get students familiar with their surroundings. Students extract, isolate, ...
  • Mulcahy, Seann P. (2011-10-11)
    A convenient preparation of substituted benzoic acids from Grignard additions to solid carbon dioxide. Students create a library of carboxylic acids by using differentially substituted, commercially available aryl bromides, ...
  • Mulcahy, Seann P. (2011-07-14)
    A two-week multi-step experiment that introduces students to mechanistic organic chemistry and substituent effects. A simple preparation of differentially substituted para-nitrophenyl benzoates is followed by ester hydrolysis ...
  • Mulcahy, Seann P.; Evans, Thomas; Rossi, Lauren (2011-07-14)
    Excellent laboratory procedure for a small focused library of dihydropyrimidinones. Good example of a multicomponent reaction performed using microwave irradiation.
  • Mulcahy, Seann P. (2011-07-14)
    A simple, solventless procedure for reductive amination that results in an impressive color change. Reaction proceeds in three stages: imine formation, reduction, and acetylation and purification is done by crystallization.
  • Mulcahy, Seann P. (2012-01-03)
    An easy preparation of differentially-substituted biaryls is reported by palladium-catalyzed cross coupling. The Suzuki cross coupling reaction is both fast and substituent-independent. Column chromatography is performed ...
  • Mulcahy, Seann P. (2012-01-03)
    A simple preparation of a conjugated diene via the olefination reaction between cinnamaldehyde and triphenylphosphonium chloride under basic conditions. Students are reintroduced to dry glassware techniques, recrystallization, ...

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