Applications of bis(4-methylcumylphenyl)ruthenium dichloride_Kain Industrial Additives

Overview^[1]

Bis(4-methylcumylphenyl)ruthenium dichloride is a catalyst that can be used in organic chemical reactions and can also be used to prepare new ruthenium (II) complexes.

Apply^[1-2]

Bis(4-methylcumylphenyl)ruthenium dichloride can be used to prepare 1,2-diketones. 1,2-diketones are a very important class of organic compounds. They can be used as structural units of a variety of physiologically active natural products and are also widely used in the synthesis of other heterocyclic compounds.

CN201110029804 discloses a method for preparing 1,2-diketone, using olefin as the reaction substrate, hydrogen peroxide, tert-butanol peroxide, m-chloroperoxybenzoic acid or p-benzoquinone as the oxidant, and dichloro Bis(4-methylcumylphenyl)ruthenium(II), triphenylphosphine ruthenium chloride, ruthenium acetate, dichlorophenylruthenium(II) dimer, ruthenium trichloride, [2,2′ ‘-bis(diphenylphosphorus)-1,1”-binaphthyl]ruthenium dichloride, triruthenium dodecacarbonyl or tricarbonylruthenium dichloride dimer as catalyst, using tetrabutyl One of ammonium iodide, tetramethylammonium iodide, tetraheptyl ammonium iodide, trimethylbenzyl ammonium iodide, potassium iodide, sodium iodide or lithium iodide is used as a cocatalyst, with acetonitrile, toluene, nitrate Methane, 1,4-dioxane or water is used as the solvent, and the reaction is carried out at a temperature above 25°C for 1 to 24 hours to prepare 1,2-diketone; the method of the present invention has high selectivity and a wide range of substrates , the reaction conditions are greener and milder.

CN201210123844 discloses a triphenylamine-bridged ruthenium bipyridyl complex photosensitive dye with a unilateral asymmetric structure and a preparation method. Under the protection of N₂, add the corresponding dye ligands, dichlorobis(4-methylisopropylphenyl)ruthenium(II) and N,N-dimethylmethane into the reactor. Amide, in the dark, control the temperature at 70~90℃ to react for 3~8 hours, then add 4,4′-dicarboxy-2,2′-bipyridine and heat to reflux for 3~6 hours; add thiocyanine Continue the reflux reaction of ammonium acid for 4 to 12 hours. The crude product obtained after post-treatment of the reaction solution is separated using a Sephadex gel chromatography column to obtain the photosensitive dye. The energy level of the dye is suitable for electron injection and regeneration of oxidized dyes. The photoelectric conversion efficiency of sensitized solar cells prepared with the synthesized dyes reaches 7.57%~8.18%. The preparation and photoelectric property research of the triphenylamine-bridged ruthenium bipyridine complex photosensitive dye with a unilateral asymmetric structure of the present invention has important theoretical and practical significance for the research of dye-sensitized solar cells.

Preparation^[3]

Mix 350 mg of RuCl·xHO with a ruthenium weight content of 37% and 2.8 mL of γ-terpinene with a purity of 95% in 9 mL of absolute ethanol, reflux at a temperature of 40°C for 6 hours, and let stand to precipitate to obtain the intermediate product. (Dichlorodimethylcumenylruthenium dichloride).

Main reference materials

[1]CN201110029804.0 A method for catalytically oxidizing alkenes to prepare 1,2-diketones

[2]CN201210123844.6 Triphenylamine-bridged bipyridyl ruthenium complex photosensitive dye with one-sided asymmetric structure and preparation method

[3]From Faming Zhuanli Shenqing, 109180737, 11 Jan 2019