Application In Synthesis of 4,4′-Dimethyl-2,2′-bipyridineIn 2022 ,《Syntheses, characterizations and structures of ruthenium carbene and allenylidene complexes supported by 1,4,7-trimethyl-1,4,7-triazacyclononane (Me3tacn) ligands》 was published in Journal of Organometallic Chemistry. The article was written by Qian, Bing-Feng; Gao, Yang; Xu, Qian-Ya; Jia, Ai-Quan; Shi, Hua-Tian; Zhang, Qian-Feng. The article contains the following contents:
Treatment of ruthenium(II) precursor [(Me3tacn)Ru(dmso)Cl2] (Me3tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane, dmso = dimethylsulfoxide) (1) with concentrated HCl in the presence of air afforded the ruthenium(III) complex [(Me3tacn)RuCl3·H2O] (2), from which a series of bipyridine-ruthenium(II) complexes [(Me3tacn)Ru(R-bpy)(H2O)](PF6)2 (bpy = 2,2′-bipyridine) was obtained according to our previous work. Reactions of [(Me3tacn)Ru(R-bpy)(H2O)](PF6)2 and 1,1-diphenylpropargyl alc. afforded ruthenium(II) methoxycarbene complexes [(Me3tacn)(R-bpy)Ru:C(OMe)CH:CPh2](PF6)2 (3, 5, 7, 9; R = H, 4,4′-Me2, 5,5′-Me2, 4,4′-tBu2) and ruthenium(II) allenylidene complexes [(Me3tacn)(R-bpy)Ru:C:C:CPh2](PF6)2 (4, 6, 8, 10; R = H, 4,4′-Me2, 5,5′-Me2, 4,4′-tBu2) under different solvent conditions. Complexes 3-10 were well characterized by IR, UV/Vis, mass spectrometry, and NMR spectroscopies. The mol. structures of complexes 5, 7, and 8 have been also established by single-crystal X-ray diffraction. In the experimental materials used by the author, we found 4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6Application In Synthesis of 4,4′-Dimethyl-2,2′-bipyridine)
4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6) is used in the synthesis of a series of o-phenanthroline-substituted ruthenium(II) complexes.Application In Synthesis of 4,4′-Dimethyl-2,2′-bipyridine Furthermore, 4,4′-Dimethyl-2,2′-bipyridine is used as a chemical Intermediate. It can be used for the determination of ferrous and cyanide compounds.