On study of sterically controlled regioselective lithiation of meta-halopyridocarboxamides derivatives
作者:Nicolas Robert、Thibaut Martin、Julien Grisel、Jalal Lazaar、Christophe Hoarau、Francis Marsais
DOI:10.1016/j.tetlet.2008.12.068
日期:2009.4
Sterically controlled regioselective lithiation of meta-halopyridocarboxamides derivatives using deuterated probes is described. A first experimental demonstration that the nitrogen is the main chelating-base approach site onto the oxazoline and N-alkoxyamide DMGs is reported.
描述了使用氘代探针的间-卤代吡啶甲酰胺衍生物的立体控制区域选择性锂化。首次实验证明了氮是恶唑啉和N-烷氧基酰胺DMG的主要螯合碱进场位点。