作者:A. M. Vasil'tsov、E. Yu. Shmidt、A. I. Mikhaleva、A. B. Zaitsev、O. A. Tarasova、A. V. Afonin、D.-S. D. Toryashinova、L. N. Il'icheva、B. A. Trofimov
DOI:10.1023/a:1012363904621
日期:——
Ketone oxime O-vinyl ethers having alkyl or phenyl radicals react with trifluoroacetic anhydride in ether in the presence of pyridine, yielding 43-54% of the corresponding ketone oxime O-(trans-4,4,4-trifluoro-3-oxo-1-butenyl) ethers with high stereoselectivity.
New fluorinated halomethyl isoxazoles
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.
GERUS, I. I.;GORBUNOVA, M. G.;VDOVENKO, S. I.;YAGUPOLSKIJ, YU. L.;KUXAR, +, ZH. ORGAN. XIMII, 26,(1990) N, S. 1877-1883
作者:GERUS, I. I.、GORBUNOVA, M. G.、VDOVENKO, S. I.、YAGUPOLSKIJ, YU. L.、KUXAR, +