Methanol → HCID 86687911, compound

Participants

Reaction Steps

2-(2-((2-Chloropyrimidin-4-yl)ethynyl)-5-fluorophenyl)acetonitrile (0.695 g, 2.56 mmol) is dissolved in ethyl acetate (90 ml), and 10% Pd/C (0.142 g, 0.133 mmol) are added. The suspension is hydrogenated at RT for 24 h under an H2 pressure of 40 psi in a Parr apparatus (hydrogenation apparatus). Since the reaction proceeds very sluggishly, 9 ml of methanol and further catalyst are added (10% Pd/C (0.142 g, 0.133 mmol). Over a further 28 h, 142 mg of catalyst are added three further times until complete conversion is observed. The dark suspension is filtered, washed with ethyl acetate and methanol, and the filtrate is evaporated to dryness in vacuo. Chromatography of the 700 mg of crude product on silica gel with petroleum ether/ethyl acetate=7:3 gives 386 mg of 2-(2-(2-(2-chloropyrimidin-4-yl)ethyl)-5-fluorophenyl)acetonitrile (1.400 mmol, 54.7% yield) as yellowish oil;

Provenance & Evidence