Selective Magnesiation or Zincation of Highly Functionalized Alkenes and Cycloalkenes Using 2,2,6,6-Tetramethylpiperidyl Bases
作者:Tomke Bresser、Paul Knochel
DOI:10.1002/anie.201006641
日期:2011.2.18
Smooth and mild: Mg or Zn TMP bases (TMP=2,2,6,6‐tetramethylpiperidyl) allow the smooth metalation of various types of polyfunctional unsaturated substrates. Several sensitive functional groups such as ester, nitro, or trifluoromethylcarbonyl groups are tolerated. The new Zn or Mg intermediates undergo acylation, allylation, or cross‐coupling reactions in satisfactory yields.