Beng Timothy K, Takeuchi Hironori, Weber Manuel, Sarpong Richmond
Department of Chemistry, Susquehanna University, 514 University Avenue, Selinsgrove, PA 17870, USA.
Chem Commun (Camb). 2015 May 4;51(36):7653-6. doi: 10.1039/c5cc01307k.
Substituted piperidines are emerging as important medicinally-active structural motifs. Here, we report highly stereoselective carbolithiation reactions of α-aryl piperidine enecarbamates that offer direct access to vicinally-substituted piperidine compounds. We have also demonstrated that the carbanion intermediates can be trapped with a carbon electrophile.
取代哌啶正逐渐成为重要的具有药用活性的结构基序。在此,我们报道了α-芳基哌啶烯氨基甲酸酯的高度立体选择性碳锂化反应,该反应可直接得到邻位取代的哌啶化合物。我们还证明了碳负离子中间体可以被碳亲电试剂捕获。