作者:Prativa Bade Shrestha-Dawadi、Johan Lugtenburg
DOI:10.1002/ejoc.200600830
日期:2007.3
[2-13C]- and [3-13C]-3-cyano-4-methyl-3-pyrrolin-2-one have been prepared by a new synthetic route. α,α-Dimethoxy ketones react with bifunctional molecules in an extended Knoevenagel reaction. The products of this reaction are converted in a few steps and in high yields into the biologically important 3-pyrrolin-2-ones. This new approach also allows simple stable isotope incorporation at many sites
[2-13C]-和[3-13C]-3-cyano-4-methyl-3-pyrrolin-2-one是通过新的合成路线制备的。α,α-二甲氧基酮在扩展的 Knoevenagel 反应中与双功能分子反应。该反应的产物通过几个步骤以高产率转化为具有生物学意义的 3-pyrrolin-2-ones。这种新方法还允许在环系统的许多位点进行简单的稳定同位素掺入。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)