[Ru(O2 CR)2 (p -cymene)]

R = Me: [88658-83-7] C14H20O4Ru (MW 353.38) InChI = 1S/C10H14.2C2H4O2.Ru/c1-8(2)10-6-4-9(3)5-7-10;2*1-2(3)4;/h4-8H,1-3H3;2*1H3,(H,3,4);/q;;;+2/p-2 InChIKey = MMTGDDLZRIAKQN-UHFFFAOYSA-L R = Mes: [1251667-99-8] C30H36O4Ru (MW 561.67) InChI = 1S/2C10H12O2.C10H14.Ru/c2*1-6-4-7(2)9(10(11)12)8(3)5-6;1-8(2)10-6-4-9(3)5-7-10;/h2*4-5H,1-3H3,(H,11,12);4-8H,1-3H3;/q;;;+2/p-2 InChIKey = HHLBXJJWXKYNIH-UHFFFAOYSA-L R = Ad: [1189041-26-6] C32H44O4Ru (MW 593.76) InChI = 1S/2C11H16O2.C10H14.Ru/c2*12-10(13)11-4-7-1-8(5-11)3-9(2-7)6-11;1-8(2)10-6-4-9(3)5-7-10;/h2*7-9H,1-6H2,(H,12,13);4-8H,1-3H3;/q;;;+2/p-2/t2*7-,8+,9-,11-;; InChIKey = MNZIYIWPLMEIHR-INIMXQGNSA-L (used as catalysts for numerous CH activation reactions) Physical Data: [Ru(OAc)2(p-cymene)]: yellow solid, mp=147–149 °C. [Ru(O2CMes)2(p-cymene)]: orange solid, mp=126–128 °C. [Ru(O2CAd)2(p-cymene)]: orange solid, mp=226–229 °C. Solubility: soluble in PhMe, 1,4-dioxane, CH2Cl2, CHCl3, H2O ([Ru(OAc)2(p-cymene)]). Insoluble in H2O, n-hexane, n-pentane. Form Supplied in: solid. [Ru(O2CMes)2(p-cymene)] will soon be commercially available. Analysis of Reagent Purity: 1H NMR, 13C NMR, melting point, elemental analysis. Preparative Methods: [Ru(OAc)2(p-cymene)] is obtained from [RuCl2(p-cymene)]2 and KOAc in PhMe. [Ru(O2CMes)2(p-cymene)] and [Ru(O2CAd)2(p-cymene)] are obtained from [RuCl2(p-cymene)]2, K2CO3, and 2,4,6-trimethylbenzoic acid1 or 1-AdCO2H,2 respectively, in PhMe. Purification: filtration over a short pad of Celite in CH2Cl2. Where required, the complexes can be recrystallized from a mixture of n-hexane/acetone (5:1) at −20 °C. Handling, Storage, and Precautions: rather air-stable, extended storage is recommended under inert gas atmosphere.