反应详情

To a mixture of 5-fluoro-2-nitrophenol (1.57 g), 2-cyclopentenol (1.00 g) and triphenylphosphine (3.15 g) in methylene chloride (30.0 ml) was added at 0° C. diethylazodicarboxylate (1.89 ml). After stirring at room temperature overnight the reaction mixture was concentrated in vacuo. The residue was purified by chromatography to give the desired product.

1. concentrationwas concentrated in vacuo
2. customThe residue was purified by chromatography