Diels Alder

Topics: Water, Crystal, Laboratory glassware Pages: 4 (692 words) Published: July 16, 2013
EXP- 4 CHEM 233L
THE DIELS-ALDER REACTION
Synthesis of endo-Norbornene-5, 6-cis-dicarboxylic Anhydride and Endo-Nobornene-5, 6-cis-dicarboxylic acid

Introduction:

The purpose of this experiment was to perform the Diels-Alder reaction which is one of the most powerful reactions in organic chemistry. The Diels-Alder reaction is a cycloaddition reaction between a diene and a dienophile to produce a six-membered-ring. In part A, maleic anhydride and cyclopentadiene were used as the dienophile and the diene, respectively. Part A reaction synthesized endo-norbornene-5, 6-cis-dicarboxylic Anhydride which then used as a reactant of the part B reaction. Part B reaction was the hydrolysis of the anhydride in boiling water to form endo-Nobornene-5, 6-cis-dicarboxylic acid.

Main Reactions:
Part A:
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Part B:

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Table of Physical Properties:

|Compound Name |Molecular Weight |Melting Point |Boiling point|Density (g/ml)|Solubility |Precautions | | |(grams) |( oC) |( oC) | | | | |[pic] |98.058 |52.8-60 |200 |1.314 |Soluble; decompose in |corrosive | |Maleic anhydride | | | | |hot solvent | | |White solid | | | | | | | |[pic] |88.106 |-83.6 |77.1 |0.8945 |Soluble 8 g/100mL |Flammable liquid | |Ethyl acetate | | | | | | | |Colorless liquid with fruity | | | |...
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