Tributyl(2,3-dihydrofuran-5-yl)stannane → 2-Amino-4-(4,5-dihydro-furan-2-yl)-6-methylsulfanyl-pyrimidine-5-carbonitrile

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 700 mg (2.86 mmol) 2-amino-4-bromo-6-methylsulfanyl-pyrimidine-5-carbonitrile in 25 ml dry dioxane under argon at room temperature were added 1.13 g (3.14 mmol) tributyl-(4,5-dihydro-furan-2-yl)-stannane and 281 mg (0.40 mmol) bis(triphenylphosphine)palladium(II) chloride. The reaction mixture was heated at 100° C. for 18 h, then cooled to room temperature and concentrated in vacuo. Flash chromatography (ethyl acetate/hexane 1/1) afforded 325 mg (49%) 2-amino-4-(4,5-dihydro-furan-2-yl)-6-methylsulfanyl-pyrimidine-5-carbonitrile as a yellow crystalline solid. ES-MS m/e (%): 257 (M+Na+, 47), 235 (M+H+, 100).

Provenance & Evidence