Magnesiation Employing Grignard Reagents and Catalytic Amine. Application to the Functionalization of <i>N</i>-Phenylsulfonylpyrrole
作者:Andrew Dinsmore、David G. Billing、Karen Mandy、Joseph P. Michael、Daniel Mogano、Shivaputra Patil
DOI:10.1021/ol036288p
日期:2004.1.1
[reaction: see text] N-Phenylsulfonylpyrrole 1 is magnesiated by treatment with isopropylmagnesium chloride and catalytic diisopropylamine. Reaction with various electrophiles, including palladium-catalyzed aryl- and heteroaryl cross-coupling, provides 2-substituted phenylsulfonylpyrroles in moderate to good yields.
[反应:见正文] N-苯基磺酰基吡咯1通过用异丙基氯化镁和催化二异丙胺处理而被镁化。与各种亲电试剂反应,包括钯催化的芳基和杂芳基交叉偶联,可以中等至良好的产率提供2-取代的苯磺酰基吡咯。