the suzuki reaction

the suzuki reaction - Patricia Mora Chem 3BL The Suzuki...

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Patricia Mora Chem 3BL The Suzuki Reaction The purpose of this lab is to conduct a Suzuki reaction which goes through the process of oxidative addition, lignand exchanges, and reductive eliminations. In a reaction flask, I added .002g palladium, .199g 4-bromoacetophenone, .343g potassium carbonate, .134g phenylboronic acid, and .325g tetra-butyl ammonium bromide. The flask was heated with a stir bar at 120°C. The water condensed and the solution turned dark brown after approximately 15 minutes. When the 45 minutes of heating was complete, the solution was black. The mixture was filtered and then centrifuged, resulting in a solution with the black solid on the bottom and a dark yellow liquid on top. The top layer was pipette into a new reaction flask, heated, and then recrystallized. My melting point was 116.9°C – 177.8°C which is close to the expected range of 118-123°C. My calculated % yield was 174.9%, and this was probably because the crystals were still moist with water when a weight was obtained. In this experiment, a carbon-carbon bond was formed between 4-
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This note was uploaded on 03/13/2011 for the course CHEM 3BL taught by Professor Chunmei during the Spring '08 term at Berkeley.

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the suzuki reaction - Patricia Mora Chem 3BL The Suzuki...

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