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.
Synthesis and Thermal Stability of O-Vinylketoximes
作者:Boris A. Trofimov、Al'bina I. Mikhaleva、Alexander M. Vasil'tsov、Elena Yu. Schmidt、Ol'ga A. Tarasova、Ludmila V. Morozova、Lubov' N. Sobenina、Thomas Preiss、Jochem Henkelmann
DOI:10.1055/s-2000-6330
日期:——
The O-vinylketoximes 2 were synthesized from ketoximes 1 and acetylene in superbase systems in good to excellent yields. Their thermal stability was investigated.