作者:Paul Knochel、Fabian Piller
DOI:10.1055/s-0030-1260035
日期:2011.6
Highly functionalized furyl-, indolyl-, and pyrrolylmagnesium reagents are efficiently prepared by direct C-H activation by using regio- and chemoselective magnesium amide bases, such as (tetramethylpiperidyl)magnesium chloride-lithium chloride (TMPMgCl˙LiCl) or bis(tetramethylpiperidyl)magnesium-bis(lithium chloride) (TMP2Mg˙2LiCl), tolerated by a range of sensitive functional groups. These organometallic
高度官能化的呋喃基,吲哚基和吡咯基镁试剂可通过使用区域选择性和化学选择性的镁酰胺碱,例如(四甲基哌啶基)氯化镁-氯化锂(TMPMgCl˙LiCl)或双(四甲基哌啶基)镁-双(氯化锂)(TMP 2 Mg˙2LiCl),由一个范围敏感的官能团的耐受性。这些有机金属试剂容易与各种亲电试剂反应,从而形成多官能杂环。此外,可以实现敏感的呋喃支架的完全功能化。 定向金属化-有机金属试剂-金属酰胺-镁-呋喃