Friedel-Crafts Alkylation Reaction
Friedel-Crafts Alkylation Reaction
Preparation of 1, 4-Di-t-butyl-2, 5-dimethoxybenzene
Microscale Experiment
Leah Monroe
April 8, 2003
Organic Chemistry Lab II
Experiment performed on March 20 and 25, 2003
Lab Partners (NMR only): Shannon Land and Jamie Yeadon
Abstract:
In this experiment, 1,4-dimethoxybenzene reacted with t-butyl alcohol to form 1, 4-Di-t-butyl-2, 5 – dimethoxybenzene via a Friedel-Crafts Alkylation mechanism. A small amount of 1,4-dimethoxybenzene was dissolved in acetic acid and t-butyl alcohol, along with H2SO4. The reaction was then allowed to go to completion at room temperature, and the crystals were washed with water and methanol. The percent yield of the product was 57.48%. This was lower due to the fact that many of the crystals were stuck in the reaction tube and could not be removed for weighing. Also, when a Pasteur pipet was used to remove the solvent from the reaction tube, many crystals were lost. The......
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