Synthesis and thermal stability of O-vinylketoximes
The O-vinylketoximes 2 were synthesized from ketoximes 1 and acetylene in superbase systems in good to excellent yields. Their thermal stability was investigated.
Trofimov, Boris A.,Al'bina, Mikhaleva I.,Vasil'tsov, Alexander M.,Schmidt, Elena Yu.,Tarasova, Ol'ga A.,Morozova, Ludmila V.,Sobenina, Lubov' N.,Preiss, Thomas,Henkelmann, Jochem
PYRROLES FROM KETOXIMES AND ACETYLENE. 29. SYNTHESIS OF ALKYLPYRROLES FROM DIALKYLKETOXIMES AND DICHLOROETHANE BY REACTION WITH KOH-DMSO
Treatment of dialkylketoximes with dichloroethane and KOH-DMSO results in the formation of alkylpyrroles in 31-61percent yields.In addition, the corresponding 1-vinylpyrroles are formed simultaneously in yields up to 18percent.The corresponding 1,2-bis(alkylideneiminoxy)ethanes are obtained as side products in the reaction; they result from nucleophilic displacement of chlorine atoms by oximate anions.
Trofimov, B. A.,Mikhaleva, A. I.,Vasil'ev, A. N.,Korostova, S. E.,Shevchenko, S. G.
p. 46 - 49
(2007/10/02)
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