The Diels-Alder Reaction of Anthracene with Maleic Anhydride

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Issue:

Science

 

Written by:

Freddie A

 

Date added:

August 1, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

10 / 2706

 

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822 times

 

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Essay content:

Anthracene was the diene and maleic anhydride was the dienophile. The percent yield of the crude product was 69.03%. Following recrystallization of the product using xylene and vacuum filtration, a percent yield of 37.42% for the recrystallized product was collected. This was low due to the fact that some of the crude product was not recrystallized and was instead used to take a melting point of the crude product...
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It was also low due to several of the crystals being stuck inside the flask and not going into the funnel. The percent recovery from recrystallization was 54.21%. The melting point of the crude product was 261 - 264°C. The melting point of the recrystallized product was 261 - 263°C. Comparing these values with the literature melting point of 262 - 264°C shows that the product was indeed 9, 10-dihydroanthracene-9, 10-?, ?-succinic anhydride and that recrystallization yielded a purer product...
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