The Structural Proliferation of 2,6-Difluoropyridine through Organometallic Intermediates
作者:Manfred Schlosser、Thierry Rausis
DOI:10.1002/ejoc.200300649
日期:2004.3
consecutive treatment of 2,6-difluoropyridine with lithium diisopropylamide and N,N-dimethylformamide. Regioselective displacements of fluorine from the aldehyde by nucleophiles were carried out. To demonstrate the versatility of the organometallic approach, some two dozens of further 2,6-difluoropyridine derivs. were prepd. applying a combination of modern organometallic methods such as site selective
与文献声称相反,2,6-二氟吡啶-3-甲醛可以很容易地制备。通过用二异丙基氨基锂和 N,N-二甲基甲酰胺连续处理 2,6-二氟吡啶。进行了亲核试剂从醛中区域选择性置换氟。为了证明有机金属方法的多功能性,大约有两打另外的 2,6-二氟吡啶衍生物。准备好了。应用现代有机金属方法的组合,例如位点选择性氢/金属和卤素/金属置换以及去质子化触发的重卤素迁移。[在 SciFinder (R) 上]