2-iminopyridine nickel(II) complexes bearing electron-withdrawing groups in the ligand core: Synthesis, characterization, ethylene oligo- and polymerization behavior
作者:Artem A. Antonov、Nina V. Semikolenova、Evgenii P. Talsi、Mikhail A. Matsko、Vladimir A. Zakharov、Konstantin P. Bryliakov
DOI:10.1016/j.jorganchem.2016.08.031
日期:2016.11
NMR and X-ray diffraction studies. Those complexes, activated with MAO, have been found to be highly active in the oligomerization and polymerization of ethylene (up to 9600 kg (mol of Ni)−1 h−1 bar−1), affording highly branched low-MW PE or ethylene oligomers, predominantly butenes and hexenes. The dependence of content and ratio of ethylene oligomers as well as of the polymer characteristics (molecular
合成了一系列新颖的2-[((芳基)烷基]吡啶]衍生物,其芳基环中含有吸电子基团(F,Cl,Br,CF 3,NO 2,CN),其特征在于1 H,13 13 C和19 F NMR光谱。相应的镍(II)配合物(24种配合物)已经以高收率制备。Ni络合物的性质已通过元素分析,顺磁性1 H NMR和X射线衍射研究确定。已发现那些被MAO活化的络合物在乙烯的低聚和聚合反应中具有很高的活性(高达9600 kg(Ni摩尔)-1 h -1 bar -1),可提供高度支化的低分子量PE或乙烯低聚物,主要是丁烯和己烯。已经系统地分析了乙烯低聚物的含量和比例以及聚合物特性(分子量,支化度)对芳基(亚氨基)和吡啶环中取代基的性质的依赖性。负载在二氧化硅-氧化铝上的(E)-N-(1-(吡啶-2-基)亚乙基)-2-(三氟甲基)苯胺Ni络合物提供的聚乙烯具有更高的分子量,更宽的分子量分布和更低的支化度均相催化剂。
[EN] NOVEL AMIDINE COMPOUNDS FOR TREATING MICROBIAL INFECTIONS<br/>[FR] NOUVEAUX COMPOSES D'AMIDINE DANS LE TRAITEMENT D'INFECTIONS MICROBIENNES
申请人:UNIV NORTH CAROLINA
公开号:WO2005033065A1
公开(公告)日:2005-04-14
Novel amidine and diamidine compounds are useful in the treatment of microbial infections, including mycobacterial, fungal and protozoal infections. Pharmaceutical formulations comprising these compounds can be used in methods of treating microbial infections.
The Thiophene “Sigma-Hole” as a Concept for Preorganized, Specific Recognition of G⋅C Base Pairs in the DNA Minor Groove
作者:Pu Guo、Ananya Paul、Arvind Kumar、Abdelbasset A. Farahat、Dhiraj Kumar、Siming Wang、David W. Boykin、W. David Wilson
DOI:10.1002/chem.201603422
日期:2016.10.17
targeting DNA is under‐represented in the design of small molecules. A barrier to progress in this area is the lack of a variety of modules that recognize G⋅C basepairs (bp) in DNAsequences. To overcome this barrier, an entirely new design concept for modules that can bind to mixed G⋅C and A⋅T sequences of DNA is reported herein. Because of their successes in biological applications, minor‐groove‐binding
Targeting the Hsp90 C-terminal domain by the chemically accessible dihydropyrimidinone scaffold
作者:Maria Strocchia、Stefania Terracciano、Maria G. Chini、Antonio Vassallo、Maria C. Vaccaro、Fabrizio Dal Piaz、Antonietta Leone、Raffaele Riccio、Ines Bruno、Giuseppe Bifulco
DOI:10.1039/c4cc10074c
日期:——
Identification of a first DHPM-based lead compound useful for developing a new class of Hsp90 C-terminal inhibitors for cancer therapy.
Steric and Electronic Effects in the Formation and Carbon Disulfide Reactivity of Dinuclear Nickel Complexes Supported by Bis(iminopyridine) Ligands
作者:Amarnath Bheemaraju、Jeffrey W. Beattie、Erwyn G. Tabasan、Philip D. Martin、Richard L. Lord、Stanislav Groysman
DOI:10.1021/om400187v
日期:2013.5.24
new family of bis(iminopyridine) ((N,N′-1,1′-(1,4-phenylene)bis(N-(pyridin-2-ylmethylene)methanamine) and N,N′-1,1′-(1,4-phenylene)bis(N-(1-(pyridin-2-yl)ethylidene)methanamine)) dinickel complexes, synthesized their CS2 compounds, and studied their reactivity. Bis(iminopyridine) ligands L react with Ni(COD)2 to form Ni2(L)2 complexes or Ni2(L)(COD)2 complexes as a function of the steric and electronic