98846-92-5Relevant academic research and scientific papers
Manganese(ii) complexes of scorpiand-like azamacrocycles as MnSOD mimics
Clares, Ma Paz,Blasco, Salvador,Inclan, Mario,Agudo, Lucas Del Castillo,Verdejo, Begona,Soriano, Conxa,Domenech, Antonio,Latorre, Julio,Garcia-Espana, Enrique
, p. 5988 - 5990 (2011)
MnII complexes of scorpiand-type azamacrocycles constituted by a tretrazapyridinophane core appended with an ethylamino tail including 2- or 4-quinoline functionalities show very appealing in vitro SOD activity. The observed behaviour is relate
Hydrogen Peroxide Complex of Zinc
Wallen, Christian M.,Bacsa, John,Scarborough, Christopher C.
, p. 14606 - 14609 (2015)
Metal(H2O2) complexes have been implicated in kinetic and computational studies but have never been observed. Accordingly, H2O2 has been described as a very weak ligand. We report the first metal(H2O
Flexible, N-sulfonyl-substituted aliphatic amine ligands in palladium-catalyzed Suzuki–Miyaura C–C coupling: Influence of substituents bulkiness and co-ligand size
Oloyede, Hammed Olawale,Woods, Joseph Anthony Orighomisan,G?rls, Helmar,Plass, Winfried,Eseola, Abiodun Omokehinde
, p. 182 - 191 (2019/01/03)
Widespread use of commercially available palladium precatalysts is limited by high costs and their synthetic challenges. In this report, series of synthetically affordable, phosphine-free ligands were examined as supports for palladium active centers. 2-(
Sulfonamido tripods: Tuning redox potentials via ligand modifications
Lau, Nathanael,Ziller, Joseph W.,Borovik
supporting information, p. 777 - 782 (2015/02/19)
A series of FeII-OH2 complexes were synthesized with ligands based on the tetradentate sulfonamido tripod N,N′,N″-[2,2′,2″-nitrilotris(ethane-2,1-diyl)]-tris-({R-Ph}-sulfonamido). These complexes differ by the substituent on the aryl rings and were fully characterized, including their molecular structures via X-ray diffraction methods. All the complexes were five-coordinate with trigonal bipyramidal geometry. A linear correlation was observed between the electronic effects of each ligand, given by the Hammett constants of the para-substituents, and the potential of the FeII/FeIII redox couple, which were determined using cyclic voltammetry. It was found that the range of redox potentials for the complexes spanned approximately 160 mV.
In vitro activity of scorpiand-like azamacrocycle derivatives in promastigotes and intracellular amastigotes of Leishmania infantum and Leishmania braziliensis
Marin, Clotilde,Clares, M. Paz,Ramirez-Macias, Inmaculada,Blasco, Salvador,Olmo, Francisco,Soriano, Conxa,Verdejo, Begona,Rosales, Maria Jose,Gomez-Herrera, David,Garcia-Espana, Enrique,Sanchez-Moreno, Manuel
, p. 466 - 477 (2013/06/05)
The activity of a family scorpiand-like azamacrocycles against Leishmania infantum and Leishmania braziliensis was studied using promastigotes, axenic and intracellular amastigotes forms. All the compounds are more active and less toxic than meglumine ant
Reduction of copper(II) complexes of tripodal ligands by nitric oxide and trinitrosation of the ligands
Sarma, Moushumi,Kalita, Apurba,Kumar, Pankaj,Singh, Amardeep,Mondal, Biplab
supporting information; experimental part, p. 7846 - 7847 (2010/08/05)
The copper(II) centers in two copper(II) complexes of tripodal amine ligands, in acetonitrile solvent, upon exposure to nitric oxide have been found to produce a thermally unstable [CuII-NO] intermediate followed by the reduction of copper(II)
Tritopic phenanthroline and pyridine tail-tied aza-scorpiands
Gonzalez, Jorge,Llinares, Jose M.,Belda, Raquel,Pitarch, Javier,Soriano, Concepcion,Tejero, Roberto,Verdejo, Begona,Garcia-Espana, Enrique
supporting information; experimental part, p. 2367 - 2376 (2010/07/08)
The synthesis of two new tritopic double-scorpiand receptors in which two equivalent 5-(2-aminoethyl)-2,5,8-triaza[9]-(2,6)-pyridinophane moieties have been linked with 2,6-dimethylpyridine (L1) or 2,9-dimethylphenanthroline (L2) units is reported for the
Cu2+ and AMP complexation of enlarged tripodal polyamines
Albelda, M. Teresa,Garcia-Espana, Enrique,Jimenez, Hermas R.,Llinares, Jose M.,Soriano, Conxa,Sornosa-Ten, Alejandra,Verdejo, Begona
, p. 4474 - 4481 (2007/10/03)
The synthesis, characterization, Cu2+ coordination and interaction with AMP of three tripodal polyamines are reported. The polyamines are based on the structure of the tetraamine (tren) which has been enlarged with three propylamino functionali
Controllable, selective per-functionalization of dendritic oligoamines
Voegtle, Fritz,Fakhrnabavi, Hassan,Lukin, Oleg
, p. 1075 - 1078 (2007/10/03)
A method allowing for an unprecedented controllable functionalization of oligoamines via N,N-bis-sulfonylation with various sulfonyl chlorides has been developed. Depending on the nature of the sufonyl chloride and reaction conditions such as base, time o
A highly efficient, preorganized macrobicyclic receptor for halides based on CH... and NH...anion interactions
Ilioudis, Christos A.,Tocher, Derek A.,Steed, Jonathan W.
, p. 12395 - 12402 (2007/10/03)
The preorganized, macrobicyclic azaphane (1) exhibits remarkable strong, selective fluoride binding comparable to the most effective bis(tren) cryptands despite binding anions via only three NH groups coupled with three CH hydrogen bond donors. The lower intrinsic affinity of CH donors is compensated by the high degree of preorganization exhibited by azacyclophane 1. Compound 1 is prepared via a tripod-tripod cyclization reaction between 1,3,5-tris- bromomethyl-benzene and an aliphatic tripodal hexatosylated polyamine, followed by the reduction of the resulting bicyclic tosylamine. The crystal structures of the bicyclic tosylamine 2 and four macrobicyclic polyammonium halide salts of 1 are reported. X-ray studies revealed the formation of inclusive 1:1 complexes of 1 with fluoride, chloride, bromide, and iodide. Potentiometric titrations showed very high binding constants for fluoride and chloride with a F -/Cl- selectivity of more than five logarithmic units. The final geometry of the anion cryptates is largely determined by optimization of NH and CH...anion interactions coupled with unfavorable anion-π repulsion for the larger anions.
