developed. The method employs ethyl dibromofluoroacetate (EDBFA) as an accessible and inexpensive source of the bromofluorocarbene (:CFBr) intermediate. The protocol provides the bromofluorocyclopropane products in excellent yields, including examples synthesized in multigram scales. The chlorinated ester, ethyl dichlorofluoroacetate (EDCFA), is also utilized to make the analogous gem-chlorofluorocyclopropanes
已开发出一种在温和条件下有效且操作简单的偕
溴氟环丙烷合成方法。该方法使用
二溴氟乙酸乙酯 (
EDBFA) 作为
溴氟卡宾 (:CFBr) 中间体的可获取且廉价的来源。该协议以优异的产量提供
溴氟环丙烷产品,包括以多克规模合成的示例。
氯化酯
二氯氟乙酸乙酯 (EDCFA) 也用于制造类似的宝石-
氯氟环丙烷。