作者:Alexander Klausener、Bernd Baasner
DOI:10.1016/s0022-1139(00)80124-4
日期:1991.12
New fluorinated 5-halomethyl isoxazoles may be prepared from easily accessible 5-trichloromethylisoxazole by chlorine-fluorine exchange reactions. The reaction products may be ring-opened to enolates of 3-oxo-4,4,4-trihalobutyronitriles, which are useful as halogenated C3 synthons.