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Preparation, Distillation and Spectroscopic Identification of 2-Chloro-2-methylpropane

Posted on Mar 15 2011 by Warwick J Belcher

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Tags: asell chemistry, organic chemistry

Experiment Overview

This experiment is the last experiment that the students do in the CHEM1020 course experiment. It describes the synthesis of 2-chloro-2-methylpropane from 2-methyl-2-propanol and the subsequent isolation and purification of the product by distillation. Characterisation of the starting material and product are then confirmed by examination and analysis of the IR, 1H NMR and 13C NMR spectroscopy.
his experiment introduces the concept of synthetic chemistry to the students and is the first time they have handled synthetic glassware. Furthermore, this is the first time they have isolated and purified a compound by distillation. As such it gives the students a taste of the types of techniques and syntheses they will encounter at 2000 level. The experiment also provides the students will real and relevant IR, 1H NMR and 13C NMR spectra for analysis. The experiment compliments the concurrent lecture course which at this point is covering introductory organic synthesis (in particular functional group transformations of which alcohol to chloride is one example) and low level analysis of IR, 1H NMR and 13C NMR spectra. As such the experiment reinforces the lecture material and the lecture material provides an excellent resource for the report write-up.

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