3 years ago

A Palladium(II) Complex of a C4 Chelating Bis(NHC) Diphosphonium Bis(ylide) Ligand

A Palladium(II) Complex of a C4 Chelating Bis(NHC) Diphosphonium Bis(ylide) Ligand
Noël Lugan, Cécile Barthes, Yves Canac, Christian Bijani
The preparation and the structure of a palladium(II) complex bearing an extremely electron rich C4 chelating bis(NHC) diphosphonium bis(ylide) ligand are described. This Pd complex is obtained as a single diastereoisomer via a four-step synthesis from the bis(imidazol-1-yl)methane in 43% overall yield. It results from two fully selective processes: the deprotonation of two imidazolium moieties in the presence of phosphonium centers and the coordination of two phosphonium ylides at the metal center. Steric and electrostatic constraints between the triphenylphosphonio substituents at the C-ylidic positions are proposed to explain the diastereoselectivity of the C2 coordination in favor of the dl form (RR/SS).

Publisher URL: http://dx.doi.org/10.1021/acs.organomet.7b00405

DOI: 10.1021/acs.organomet.7b00405

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.