F. V. Rantwijk, T. Spek, H. Bekkum
1972
Citations
0
Influential Citations
4
Citations
Journal
Recueil des Travaux Chimiques des Pays-Bas
Abstract
Chlorotris (triphenylphosphine) iridium (I) and trans-carbonylchlorobis (triphenylphosphine) iridium (I) have been treated with hydrogen peroxide to yield catalysts for homogeneous hydrogenation. Evidence is presented that the activation involves selective oxidation of one triphenylphosphine ligand. Hydrogenation of terminal or cis-substituted olefinic double bonds, catalyzed by both complexes, is accompanied by extensive isomerization. The kinetics of the hydrogenations are rather complex and remained unexplained. Deuteration experiments revealed some details of the mechanism of hydrogen addition and exchange.