The reaction of 5-iodo-1,3-dioxin-4-ones with trifluoromethyl iodide in the presence of copper powder in hexamethylphosphoric triamide affords the title compounds, which can be converted either to α-trifluoromethylated β-keto acid derivatives or to uracil or oxazine derivatives bearing a trifluoromethyl group.
5-
碘-1,3-
二恶烷-4-酮与三
氟甲基
碘在六甲基
磷酸三酰胺存在下与
铜粉反应,生成标题化合物,这些化合物可以转化为α-三
氟甲基化的β-
酮酸衍
生物或带有三
氟甲基的尿
嘧啶或
噁唑衍
生物。