Acetic Acid → (R)-3-(Acetyloxy)-1-[4-(1-pyrrolidinyl)-2-butynyl]-2-pyrrolidinone

Participants

Reaction Steps

A solution of 0.5 g of (S)-3-hydroxy-1-[4-(1-pyrrolidinyl)-2-butynyl]-2-pyrrolidinone, 0.75 g of triphenylphosphine and 0.2 ml of acetic acid in 20 ml of tetrahydrofuran was stirred at room temperature in a tap water bath. A 0.6 g portion of diethyl azodicarboxylate was added dropwise, this mixture was stirred overnight, then the solvent was removed in vacuo. The residue was purified by chromatography (silica gel), giving 0.4 g of the desired product.

Provenance & Evidence