Tag : Diels-Alder Reaction

The Diels-Alder Reaction

Understanding Diels-Alder Stereochemistry: Key Reactions and Products The Diels-Alder reaction between cyclopentadiene and maleic anhydride — documented in the student report below — is one of the most studied [4+2] cycloadditions in organic chemistry. Before examining that experiment, this section addresses several closely related reactions that build on the same mechanistic principles and are frequently studied in advanced coursework. 5-Fluorocyclopentadiene + Maleic Anhydride: Major Product and Stereochemistry When 5-fluoro-1,3-cyclopentadiene reacts with maleic anhydride, the fluorine substituent at C-5 breaks the […]

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) […]