反应详情

14.6 g (0.047 mol) of 3-(2-chloro-6-fluorophenyl)-2,4,6-trichloropyridine (see Example Ab), 20.0 g (0.051 mol) of 2-tri-n-butylstannylpyrimidine and 1.1 g (0.94 mmol) of tetrakistriphenylphosphinepalladium(0), dissolved in 70 ml of dimethylformamide and 50 ml of 1,4-dioxane, were kept at 110° C. for 10 h. After removal of the volatile components under reduced pressure, the product was purified on silica gel using cyclohexane/ethyl acetate. Yield 2.0 g of yellow crystals (m.p. 147° C.).

1. customAfter removal of the volatile components under reduced pressure
2. customthe product was purified on silica gel