Acylation of vinylsilanes with acid anhydrides is catalyzed by [RhCl(CO)2]2 to give α,β-unsaturated ketones. The application of this catalytic system to the acylation of α-acyloxy vinylsilanes affords α-acyloxy enones in good yields, which are converted to unsymmetrical 1,2-diketones or their mono acetals.
在 [RhCl(CO)2]2 催化下,
乙烯基硅烷与酸酐发生酰化反应,生成 α、β-不饱和酮。将这一催化系统应用于 α-乙酰氧基
乙烯基硅烷的酰化反应,能以良好的收率得到 α-乙酰氧基烯酮,并将其转化为不对称的 1,2-二酮或其单
乙缩醛。