Acrylic Acid → 5-Norbornene-2-carboxylic acid

Participants

Reaction Steps

Cyclopentadiene (66 g) and 86 g of acrylic acid were dissolved in 500 g of THF solvent. After the reaction at 30° C. for 24 hours, the solvent and excess acrylic acid were removed by rotary evaporator. The residue was distilled under reduced pressure to obtain 110 g of 5-norbornene-2-carboxylic acid as a mixture of endo and exo (yield: 71%). NMR spectral data of the resulting compound (20) is shown in FIG. 3.

Provenance & Evidence