Ethyl acetate hexane → HCID 12071334, compound

Participants

Reaction Steps

A solution of 2-(5-hydroxy-2-nitro-benzylidene)-succinic acid diethyl ester (3.8 g, 12 mmol) in ethanol (35 mL) was hydrogenated over 10% Pd—C (0.8 g) at 25° C. and 1 atm. After 20 h, the catalyst was filtered through diatomaceous earth and washed with ethanol (3×35 mL). The filtrate was concentrated giving a mixture of solid and foam (2.8 g). Flash chromatography (190 g silica; 20%, then 40% EtOAc-hexane) gives the title compound (1.3 g, 45% yield) as a pale yellow solid.

Provenance & Evidence