Nickel(II) complexes with tripodal NNN ligands as homogenous and supported catalysts for ethylene oligomerization
作者:Vladislav A. Tuskaev、Sergei V. Zubkevich、Daniele Saracheno、Svetlana Ch. Gagieva、Pavel V. Dorovatovskii、Elena G. Kononova、Victor N. Khrustalev、Dmitry N. Zarubin、Boris M. Bulychev、Yury V. Kissin
DOI:10.1016/j.mcat.2018.12.018
日期:2019.2
correspondingly and represent a monomeric octahedral nickel complexes, that are typical for tridentate scorpion-type ligands. New method for immobilization of nickel complexes with derivatives of N,N-bis(pyrazol-1-ylmethyl)propylamine on silica gel modified with aminopropyl groups was proposed. The EXAFS/XANES analysis indicated that Ni atom in the supported complexes adopt almost octahedral geometry, being partly
Process for the preparation of 1-Hydroxymethylpyrazoles
申请人:BUCKMAN LABORATORIES INTERNATIONAL, INC.
公开号:EP0467707A1
公开(公告)日:1992-01-22
A process for the preparation of a 1-hydroxymethylpyrazole comprising combining a methylpyrazole with water and an aqueous formaldehyde solution to form a 1-hydroxymethylpyrazole in a mother liquor, filtering said 1-hydroxymethylpyrazole from said mother liquor, and combining said mother liquor with a second aqueous formaldehyde solution and methylpyrazole.
Control of microorganisms on plants with 1-hydroxymethylpyrazoles
申请人:BUCKMAN LABORATORIES INTERNATIONAL, INC.
公开号:EP0467708B1
公开(公告)日:1998-11-04
Synthesis, Structural Characterization, Reactivity, and Catalytic Properties of Copper(I) Complexes with a Series of Tetradentate Tripodal Tris(pyrazolylmethyl)amine Ligands
作者:Estela Haldón、Manuela Delgado-Rebollo、Auxiliadora Prieto、Eleuterio Álvarez、Celia Maya、M. Carmen Nicasio、Pedro J. Pérez
DOI:10.1021/ic500311y
日期:2014.4.21
derivatives 1–4 with PPh3 and CO have been explored. In all cases, 1:1 adducts [TpaxCuL]PF6 [L = PPh3 (9–11), CO (12–15)] have been isolated. The crystalstructure of [Tpa*Cu(PPh3)]PF6 (9) has been obtained, showing that the coordination geometry around copper(I) is trigonal-pyramidal with the apical position occupied by the tertiary amine N atom. The Tpa* ligand binds the Cu center to three of its four N atoms