二乙酸碘苯促进芳基酮烯醇硅醚的氯化反应

Diacetoxyiodobenzene Promoted Chlorination of Silyl Enol Ether of Aryl Ketones

利用三甲基氯硅烷作为氯源,在二乙酸碘苯促进下,以芳基酮衍生的烯醇硅醚作为底物,合成了一系列α-氯代芳基酮.该方法反应条件温和,以中等至较好收率得到氯代芳基酮.若使用三甲基溴硅烷作为溴源,该方法还能用来制备α-溴代芳基酮.

A series of α-chloroketones were obtained from silyl enol ethers of aryl ketones using trimethylchlorosilane as chlorine source and diacetoxyiodobenzene as promoter. The reaction occurs under mild condition yielding the product in moderate to good yields, and has the potential possibility for the synthesis of α-bromoketone by using trimethyl bromosilane as bromine source.