CHEM 245 Lecture Notes - Lecture 3: Organic Compound, Infrared Spectroscopy, Bromobenzene
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8 Mar 2016
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Fall 2015: experiment 3-synthesis of triphenyl methanol (80) Report appearance (typed, on time, formatted, presentable, complete) Triphenyl methanol was produced using a grignard reagent. The grignard reagent was formed when magnesium was added to the bromobenzene in ether. 0. 83 grams of triphenyl methanol was collected with a percent yield of 80%. Bromobenzene was the limiting reagent in this synthesis because of the smaller molar quantity (0. 00401 moles bromobenzene). The melting point of the final product was 161 - 1630c. The purpose of this experiment was to form triphenyl methanol using a grignard reagent. Grignard reactant was produced from magnesium and bromobenzene that was then reacted to benzophenone. It was critical to keep the reaction dry to enable to grignard reagent to work properly. The melting point of the final product, triphenyl methanol, was measured. *literature melting points and boiling points were taken from jean-claude bradley open melting point dataset and oxford university chemical.
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