Triphenylphosphine → 3-[2-(2-Oxo-pyrrolidin-1-yl)-ethoxy]-indeno[1,2-b]pyridin-5-one

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Reaction Steps

3-Hydroxy-indeno[1,2-b]pyridin-5-one (0.0500 g), di-t-butyl azodicarboxylate (0.087 g) and triphenylphosphine (0.10 g) were mixed with tetrahydrofuran (1.0 ml), 1-(2-hydroxy-ethyl)-2-pyrrolidone (0.043 ml) was added thereto, and the mixture was stirred at room temperature for 1 day. The mixture was purified by preparative thin layer chromatography (silica gel, eluent: ethyl acetate/methanol=10/1) to give the title compound (0.0386 g, 49%).

Provenance & Evidence