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A Guided-Inquiry Approach to the Sodium Borohydride Reduction and Grignard Reaction of Carbonyl CompoundsRobert E. Rosenberg Students teams identify unknowns and their reaction products and use their data to deduce that esters are less electrophilic than the other carbonyl compounds present, that Grignard reagents are more nucleophilic than sodium borohydride, and that carboxylic acid derivatives do not undergo the nucleophilic addition reactions that are characteristic of aldehydes and ketones. Rosenberg, Robert E. J. Chem. Educ.2007, 84, 1474.
Addition Reactions |
Aldehydes / Ketones |
Esters |
Grignard Reagents |
IR Spectroscopy |
Oxidation / Reduction |
Reactions |
Student-Centered Learning
A Greener Approach to Aspirin Synthesis Using Microwave IrradiationIngrid 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
4-Dimethylaminopyridine or Acid-Catalyzed Syntheses of Esters: A ComparisonAnnemieke 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.
