Neha Patil (Editor)

(Cymene)ruthenium dichloride dimer

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Red solid

(Cymene)ruthenium dichloride dimer

(Cymene)ruthenium dichloride dimer is the organometallic compound with the formula [(cymene)RuCl2]2. This red-coloured, diamagnetic solid is a reagent in organometallic chemistry and homogeneous catalysis.


Preparation and reactions

The dimer is prepared by the reaction of the phellandrene with hydrated ruthenium trichloride. In solution, [(cymene)RuCl2]2 exchanges with other arenes, releasing free p-cymene.

(Cymene)ruthenium dichloride dimer reacts with Lewis bases to give monometallic adducts:

[(cymene)RuCl2]2 + 2 PPh3 → 2 (cymene)RuCl2(PPh3)

Such monomers adopt pseudo-octahedral piano-stool structures.

Precursor to catalysts

Treatment of [(cymene)RuCl2]2 with the chelating ligand TsDPENH. The product (cymene)Ru(TsDPEN-H) is a catalyst for asymmetric transfer hydrogenation.

[(cymene)RuCl2]2 is also used to prepare catalysts (by monomerization with dppf) used in borrowing hydrogen catalysis, a catalytic reaction that is based on the activation of alcohols towards nucleophilic attack.


(Cymene)ruthenium dichloride dimer Wikipedia

Similar Topics