Fredrik E. Cederbaum

TL;DR: In this paper, the treatment of Cl2ZrCp2 with 2 equiv of alkylmetals (RM) containing Li or Mg, e.g., n-BuLi, in THF produces organozirconium species that act as sources of ZrC p2, the latter product being a convenient reagent for preparing zirconacycles.

TL;DR: In this article, the bicyclization reaction of enynes of the XC≡CCH2YCH2CH=CH2 type promoted by 2 n-BuLi-Cl2ZrCP2 proceeds in high yields in cases where X is alkyl, aryl, alkenyl, Me3Si, or Me3Sn and Y is CH2 or NCH2Ph.

TL;DR: The Pauson-Khand reaction has been studied extensively in the literature as discussed by the authors, with a focus on cycloaddition precursors for natural product synthesis, such as dicobaltoctacarbonyl and traceless tethers.