Efficient Preparation of [2-13C]- and [3-13C]-3-Cyano-4-methyl-3-pyrrolin-2-one
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