反应详情

温度

140 °C

10.9 g of 2,2-dimethyl-5-trifluoromethylsulfonyloxy-4H-(1,3)-benzodioxin-4-one, 16.0 g of 6-methoxy-2-tributylstannylpyridine, 4.25 g of lithium chloride, 0.78 g of tetrakistriphenylphosphinepalladium0 and 40 mg of 2,6-di-t-butyl-4-methylphenol are dissolved in 120 ml of dioxane and the mixture is stirred for 4 h at 140° C. in an autoclave. It is concentrated in vacuo and the product is chromatographed on silica gel 60 using ethyl acetate/toluene. 9.1 g (95%) of a solid of m.p. 130°-132° C. are obtained.

1. concentrationIt is concentrated in vacuo
2. customthe product is chromatographed on silica gel 60 using ethyl acetate/toluene