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Incorporating Organic Name Reactions and Minimizing Qualitative Analysis in an Unknown Identification Experiment

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Claire Castro and William Karney

University of San Francisco, Department of Chemistry, 2130 Fulton Street, San Francisco, CA 94117-1080

J. Chem. Educ., 1998, 75 (4), p 472

DOI: 10.1021/ed075p472

Publication Date (Web): April 1, 1998

Section:

History, Education, and Documentation

Abstract

We have developed a new type of unknown identification experiment for the introductory organic chemistry laboratory. The unknown sample the student is provided with is the product of an organic name reaction. The student is only informed of the starting material and conditions used in the compound's synthesis, and must then: (1) deduce the compound's structure, (2) determine the name reaction and corresponding mechanism that yields the compound, and (3) present his/her results to the class. Structure determination is accomplished through the acquisition and interpretation of NMR and IR spectra. Numerous suitable name reactions are suggested.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Laboratory Instruction

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

IR Spectroscopy

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