LIGAND FOR OBTAINING A COMPLEX OF A TRANSITION METAL, A METHOD FOR ITS PRODUCTION AND A METHOD OF OBTAINING A COMPLEX OF A TRANSITION METAL USING A LIGAND Russian patent published in 2017 - IPC C07F9/50 C07F11/00 C07F15/00 C07F15/02 C07F15/04 

FIELD: chemistry.

SUBSTANCE: invention relates to ligands for transition metal complexes suitable for use in the chemical industry, the general formula:

selected from 4,5-bis(diphenylphosphino)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-1-(hexyl)-1H-1,2,3-triazole, 4,5-bis (diphenylphosphino)-1-(2-octylthio)ethyl-1H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(methyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(butyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(hexyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(octyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(allyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(hex-5-en-1-yl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(cyanomethyl)-2H-1,2,3-triazole, 4,5-bis(diphenylphosphino)-2-(vinylbenzyl)-2H-1,2,3-triazole, ethyl(2-(4,5-bis(diphenylphosphino)-2H-1,2,3-triazol-2-yl)acetate), 1-(4,5-bis(diphenylphosphino)-2H-1,2,3-triazol-2-yl)ethan-1-one. Mentioned ligand is obtained in three stages: in the first step, the synthesis oxide difosfinoatsetilena from acetylene and hlordifenilfosfina followed by oxidation difosfinoatsetilena hydrogen peroxide, the second - carry the product reacted with an appropriate azide or a mixture of organic haloganide with sodium azide, the third - is reduced with trichlorosilane to chromatographic separation desired product. The transition metal complex with said ligand receive processing metal halide selected from CrCl₃, FeCl₂, NiBr₂ or PdCl₂, corresponding ligand solution in tetrahydrofuran under argon followed by degassing and stirring the resulting suspension for 17-18 hours at room temperature, isolation and drying of the desired product.

EFFECT: provides novel ligands effective for transition metal complexes, efficient methods for their preparation and the preparation of complexes based on them in a high yield of desired products.

6 cl, 13 ex