Tag : Diels-Alder Reaction

The Diels-Alder Reaction

By: Kayla Powers and Jakkrit Suriboot Introduction Diels-Alder reactions are used for synthesizing new carbon-carbon bonds and more specifically, six-membered cyclic compounds. In addition, this reaction synthesizes compounds that are otherwise difficult to obtain, such as bridged bicyclic compounds.  A key characteristic of these reactions is their stereospecificity.  Based on the interaction between a conjugated diene and a dienophile, different stereoisomeric compounds are formed.   The Diels-Alder reaction is categorized as a pericyclic reaction, which involves the overlap of spatial orbitals […]

Preparation of a Cyclic Compound, Cyclohex-4-ene-1,2-cis-dicarboxcylic Anhydride By Diels-Alder Reaction of Butadiene Sulfone with Maleic Anhydride

Written by Hannah Abstract Ring expansion can be achieved through a cyclo addition reaction of a dinophile and a conjugated diene in a concerted reaction where all electrons move at the same time.  The experiment takes place in a single step and therefore contamination would stem from overuse of the non-limiting reagent.   Cyclohex-4-ene-1,2-cis-dicarboxcylic anhydride was prepared by placing butadiene sulfone (2.0g, 0.0169moles), the diene, with maleic anhydride (1.2g, 0.0122moles), the dinophile, while dissolved in the solvent xylene (.80mL, 0.0075moles) […]