Cyclisation at very high temperature. Thermal transformations of N-alkyl and N,N-dialkyl cinnamic amides into pyrrolidin-2-ones under FVT conditions
作者:Stanisław Leśniak、Beata Pasternak
DOI:10.1016/j.tetlet.2005.03.004
日期:2005.4
Novel cyclisations of N-alkyl and N,N-dialkyl cinnamic amides to the corresponding pyrrolidin-2-ones under the conditions of flash vacuum thermolysis, are described. It was found that this reaction proceeds at 950–1000 °C affording a mixture of isomeric pyrrolidin-2-ones in various yields. Two possible mechanisms are proposed for the process.
描述了在快速真空热解条件下N-烷基和N,N - N-二烷基肉桂酰胺对相应的吡咯烷基-2-酮的新型环化。发现该反应在950–1000°C下进行,以各种收率得到异构体吡咯烷-2-酮的混合物。为该过程提出了两种可能的机制。