137516-01-9Relevant academic research and scientific papers
Lanthanide(III) and group 13 metal ion complexes of tripodal amino phosphinate ligands
Kovacs, Michael S.,Monga, Vishakha,Patrick, Brian O.,Orvig, Chris
, p. 31 - 38 (2006)
The tripodal amino-phosphinate ligands, tris(4-(phenylphosphinato)-3- benzyl-3-azabutyl)amine (H3ppba·2HCl·H2O) and tris(4-(phenylphosphinato)-3-azabutyl)amine (H 3ppa·HCl·H2O) were synthesized and reacted with
Syntheses and characterization of copper(II) and cobalt(II) complexes with tris[2-(benzylamino)ethyl]amine
Xie, Yong-Shu,Jiang, Hui,Liu, Xue-Ting,Zhou, Zhong-Yuan,Liu, Qing-Liang,Xu, Xiao-Long
, p. 1647 - 1657 (2002)
Two mononuclear complexes [Cu(NCS)(trenb)]ClO4 (1) and [Co(NCS)(trenb)]Cl·H2O (2), where trenb is tris[2-(benzylamino)ethyl]amine, were prepared and characterized by elemental analysis, IR, electronic and EPR spectra. Their crystal s
The Chloroazaphosphatrane Motif for Halogen Bonding in Solution
Li, Chunyang,Manick, Anne-Doriane,Yang, Jian,Givaudan, David,Biletskyi, Bohdan,Michaud-Chevalier, Sabine,Dutasta, Jean-Pierre,Hérault, Damien,Bugaut, Xavier,Chatelet, Bastien,Martinez, Alexandre
supporting information, p. 11964 - 11973 (2021/08/20)
Chloroazaphosphatranes, the corresponding halogenophosphonium cations of the Verkade superbases, were evaluated as a new motif for halogen bonding (XB). Their modulable synthesis allowed for synthetizing chloroazaphosphatranes with various substituents on the nitrogen atoms. The binding constants determined from NMR titration experiments for Cl-, Br-, I-, AcO-, and CN- anions are comparable to those obtained with conventional iodine-based monodentate XB receptors. Remarkably, the protonated azaphosphatrane counterparts display no affinity for anions under the same conditions. The strength of the XB interaction is, to some extent, related to the basicity of the corresponding Verkade superbase. The halogen bonding abilities of this new class of halogen donor motif were also revealed by the Δδ(31P) NMR shift observed in CD2Cl2 solution in the presence of triethylphosphine oxide (TEPO). Thus, chloroazaphosphatranes constitute a new class of halogen bond donors, expanding the repertory of XB motifs mainly based on CAr-I bonds.
Evaluation of dicopper azacryptand complexes in aqueous CuAAC reactions and their tolerance toward biological thiols
Tran, Thi V.,Couture, Garret,Do, Loi H.
supporting information, p. 9751 - 9758 (2019/07/10)
A series of dicopper azacryptand complexes was evaluated in copper-catalysed azide-alkyne cycloaddition (CuAAC) in water at 37 °C. It was found that they showed high activity at concentrations as low as 5 μM. These dinuclear catalysts were more susceptibl
High-denticity ligands based on picolinic acid for 111In radiochemistry
Price, Eric W.,Ferreira, Cara L.,Adam, Michael J.,Orvig, Chris
, p. 695 - 705 (2014/08/18)
Four new acyclic ligands, Bn-H3nonapa (3), H3nonapa (4), p-NO2-Bn-H3nonapa (10), and Bn-H3trenpa (7), were synthesized and studied with nonradioactive In3+ and with radioactive 111/su
Synthesis and studies of a super-structured porphyrin derivative - A potential building block for CcO mimic models
Charalambidis, Georgios,Ladomenou, Kalliopi,Boitrel, Bernard,Coutsolelos, Athanassios G.
experimental part, p. 1263 - 1268 (2009/07/19)
A novel porphyrin complex that contains an Fe porphyrin linked to a tridentate ligand where a Cu ion could be coordinated was synthesized. The molecule also incorporated a tyrosine mimic attached to the porphyrin ring via a urea bond and was fully charact
Selective extraction and transport of the [PtCl6]2 anion through Outer-Sphere coordination chemistry
Warr, Rebecca J.,Westra, Arjan N.,Bell, Katherine J.,Chartres, Jy,Ellis, Ross,Tong, Christine,Simmance, Timothy G.,Gadzhieva, Anastasia,Blake, Alexander J.,Tasker, Peter A.,Schroeder, Martin
supporting information; experimental part, p. 4836 - 4850 (2009/12/09)
A series of tripodal receptors designed to recognise the outer coordination sphere of the hexachlorometal-late anion [PtCl6]2~, and thus show se-lectivity for ion-pair formation over chloride binding, has been synthesised and characterised. The tripodal l
P(PhCH2NCH2CH2)3N catalysis of Mukaiyama aldol reactions of aliphatic, aromatic, and heterocyclic aldehydes and trifluoromethyl phenyl ketone
Chintareddy, Venkat Reddy,Wadhwa, Kuldeep,Verkade, John G.
experimental part, p. 8118 - 8132 (2010/02/28)
(Chemical Equation Presented) Herein we find that proazaphosphatrane 1c is a very efficient catalyst for Mukaiyama aldol reactions of aldehydes with trimethylsilyl enolates in THF solvent. Only the activated ketone 2,2,2-trifluoroacetophenone underwent clean aldol product formation with a variety of trimethylsilyl enolates under similar conditions as the aldehydes. The reactions were carried out at room temperature using (1-methoxy-2-methyl-1- propenyloxy)trimethylsilane, whereas the temperature was -15 °C in the case of 1-phenyl-1-(trimethylsilyloxy)ethylene. The reaction conditions are mild and operationally simple, and a variety of aryl functional groups, such as nitro, amino, ester, chloro, trifluoromethyl, bromo, iodo, cyano, and fluoro groups, are tolerated. Product yields are generally better than or comparable to those in the literature. 1-Phenyl-1-(trimethylsilyloxy)ethylene, 1-(trimethylsilyloxy) cyclohexene, and 2-(trimethylsilyloxy)furan underwent clean conversion to β-hydroxy carbonyl compounds under our reaction conditions. In the case of bulky (2,2-dimethyl-1-methylenepropoxy)trimethylsilane, only α,β-unsaturated esters were isolated. Heterocyclic aldehydes, such as pyridine-2-carboxaldehyde, benzofuran-2-carboxaldehyde, benzothiophene-2- carboxaldehyde, and 1-methyl-2-imidazolecarboxaldehyde, gave good yields of Mukaiyama products. An optimized synthesis for the catalyst 1c is also reported herein. 2009 American Chemical Society.
POLYAMINE COMPOUNDS
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Page/Page column 22, (2008/06/13)
This invention relates to methods for treating retinopathy and repairing tissue damage. The methods include administering to a subject in need thereof an effective amount of one or more compounds of the following formula (I): Each variable in this formula
Covalently supported porphyrins as ligands for the preparation of heme a3/CuB binuclear active site analogues of heme-copper terminal oxidases and metallation under mild conditions
Baeg, Jin-Ook
, p. 571 - 572 (2007/10/03)
New covalently supported binucleating porphyrins have been prepared as potential structural and/or functional ligands for the iron-copper (heme a3/CuB) active sites of heme-copper oxidases, and the introduction of iron and copper into one porphyrin under mild reaction conditions has been developed.
