friedelcrafts - Carlos Caceres Chemistry 3BL Sec. 502...

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Carlos Caceres Chemistry 3BL Sec. 502 Experiment 18 The Friedel-Crafts Reaction 09/18/09 09/25/09 Purpose: To create a carbon-carbon bond between biphenyl and t-butyl chloride through a friedel-crafts reaction. The AlCl3 needed for the reaction was obtained using aluminum foil. Data and Observations: Name Amount Appearance MP Range Mixed MP w/ biphenyl biphenyl .163g White, rocky crystal 68-79C t-butyl chloride .35mL Clear liquid -25C Crystal product .111g White, powdery crystal 122.3- 124.8C 57.2-59.8C Theoretical Yield: .163 g biphenyl 1mol biphenyl 1mol product 266.46g product 154.21g biphenyl 1 mol biphenyl 1 mol product = .28g product Actual Yield Percentage: 39.4% TLC Plate: All were seen under both UV and Iodine Spot components Rf Value Biphenyl in Dichloromethane .33
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Bipheny, dichloromethane, t- butyl chloride, reacted solution .33, .01 Crystal product .29 Biphenyl in dichloromethane, crystal product .33 Discusion To find the structure of the product, the first thing to do was follow the rules of a friedel-crafts reaction, meaning that we know the t-butyl chloride will attach somewhere on the benzene ring (because they are symmetrical, it doesn’t matter which) and the
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friedelcrafts - Carlos Caceres Chemistry 3BL Sec. 502...

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