This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 2B: Diels-Alder Reaction Antonio Alarcon Chem 243B 2/3/08 I. Abstract In this lab, a Diels-Alder (DA) reaction was performed, in which a cycloaddition and diacid product resulted. The cycloaddition process yielded cyclic anhydride at 70.5%. The diacid process yielded a corresponding dicarboxylic acid at 80.5%. The overall process noted a % yield at 59%. The melting points of the cycloaddition and diacid products were 74-75 ° C and 199-206 ° C respectively. II. Introduction In essence, the DA reaction is characterized by the following: a pericyclic, stereospecific, 4n + 2e- reaction — one that involves the simultaneous breaking and formation of bonds. Throughout this process, dienes react with various dienophiles to generate defined products. Looking into the process involved in the above equation, the reaction behavior is explained. As the reactants approach one another, 4 electrons of one reactant and 2 electrons of the other react yielding a cycloaddition product — thus implied by the 4n +2e- rule....
View Full Document
This note was uploaded on 04/03/2008 for the course CHEM 243b taught by Professor Padias during the Spring '08 term at Arizona.
- Spring '08