Bis-silyl Chelate Ligand Precursor XantsilH2 and Some Ruthenium Xantsil Complexes

H. Tobita

Research output: Chapter in Book/Report/Conference proceedingChapter


The ligand precursor xantsilH2 was prepared by selective dilithiation at the 4,5-positions of 9,9-dimethylxanthene with 2 equiv of n-BuLi/TMEDA followed by reaction with chlorodimethylsilane. Heating a solution of xantsilH2 with 0.4M equiv of Ru3(CO)12 in toluene to 120°C for 90min provided cis-Ru(xantsil)(CO)4. Three carbonyl ligands in cis-Ru(xantsil)(CO)4 can be replaced by a η6-toluene ligand to give Ru(xantsil)(CO)(η6-C6H5Me) in high yield. Substitution of the η6-toluene ligand with PCy3 afforded Ru(xantsil)(CO)(PCy3), which serves as a unique, high-performance catalyst.

Original languageEnglish
Title of host publicationEfficient Methods for Preparing Silicon Compounds
PublisherElsevier Inc.
Number of pages6
ISBN (Electronic)9780128035689
ISBN (Print)9780128035306
Publication statusPublished - 2016 May 31


  • Arene ligand
  • C-H bond activation
  • Chelate ligand
  • Oligomerization
  • Oligosilane
  • Ruthenium complex
  • Silyl ligand

ASJC Scopus subject areas

  • Chemistry(all)


Dive into the research topics of 'Bis-silyl Chelate Ligand Precursor XantsilH2 and Some Ruthenium Xantsil Complexes'. Together they form a unique fingerprint.

Cite this