Lab2 FriedelCrafts

Lab2 FriedelCrafts - The Friedel-Crafts Reaction Anita Wong...

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The Friedel-Crafts Reaction Anita Wong, Lab Section 302, Performed October 3, 2007 Purpose In this lab, t-butyl chloride and biphenyl were combined to form a product, demonstrating the power of the Friedel-Crafts reaction. The aluminum trichloride required for the reaction to occur was generated in situ. New techniques and equipment were also used, including the gas trap and vacuum filtration. Results At the end of the experiment, the total yield of product synthesized was 0.035 grams, resulting in a yield of 12.6%. The product was spotted on a TLC plate and developed in hexane, resulting in a R f value of 0.38. The starting product had a R f value of 0.38, and the dichloromethane intermediate had a R f value of 0.33. The final product’s melting point range was measured to be 121.5-125.7°C, and its mixed melting point with biphenyl was measured to be 53.4-62.4°C. Discussion The first thing that was done was to examine the NMR spectrum for the product of the reaction to identify its structure. According to the Friedel-Crafts reaction, the t-
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