Friedel-Crafts Reaction - impurities would have been...

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Introduction The Friedel-Crafts alkylation reaction uses a Lewis acid catalyst (H 2 SO 4 in this experiment) to create a carbocation intermediate, which acts an electrophile. This electrophile is then attacked by an aromatic ring by means of an electrophilic substitution reaction. The aromaticity of the benzene is restored by removal of one hydrogen atom, which also reforms the Lewis acid catalyst. The product of the reaction was slowly cooled to room temperature and then placed in an ice bath for recrystallization to occur. If the product had not been allowed to slowly cool,
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Unformatted text preview: impurities would have been trapped in the crystal lattice. The product was isolated with vacuum filtration, and once the product cooled, its melting point was taken with a MelTemp to determine if it was in its pure form or not. Pure compounds have very narrow melting range of 1 C or less. It is expected that the melting point of the product be 104-105 C. If any impurities are present, the melting point will be depressed. Mechanism...
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This note was uploaded on 06/28/2011 for the course CH 237-238 taught by Professor Dr.jackienikles during the Spring '11 term at University of Alabama at Birmingham.

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