20319-44-2Relevant articles and documents
DABCO-directed self-assembly of bisporphyrins (DABCO = 1,4-diazabicyclo[2. 2.2]octane)
Ballester, Pablo,Costa, Antoni,Castilla, Ana M.,Deya, Pere M.,Frontera, Antonio,Gomila, Rosa M.,Hunter, Christopher A.
, p. 2196 - 2206 (2005)
Three isomeric zinc bisporphyrins have been prepared by covalently linking together two aminoporphyrins with an isophthalic acid derivative. The porphyrins differ in the substitution pattern on the meso phenyl groups, that is, ortho, meta, or para. Titrations carried out by UV-visible and 1H NMR spectroscopy have been used to map out the stabilities and the stoichiometries of the complexes formed with 1,4-diazabicyclo[2.2.2]octane (DABCO) in chloroform. The ortho-and meta-substituted bisporphyrins form 1:1 intramolecular sandwich complexes. The para-substituted bisporphyrin cannot adopt the cofacial conformation required for this type of complex and forms a higher order 2:2 intermolecular assembly, which is stable over a wide range of DABCO concentrations.
Aromatic Linkers Unleash the Antiproliferative Potential of 3-Chloropiperidines Against Pancreatic Cancer Cells
Helbing, Tim,Carraro, Caterina,Francke, Alexander,Sosic, Alice,De Franco, Michele,Gandin, Valentina,G?ttlich, Richard,Gatto, Barbara
supporting information, p. 2040 - 2051 (2020/09/21)
In this study, we describe the synthesis and biological evaluation of a set of bis-3-chloropiperidines (B?CePs) containing rigid aromatic linker structures. A modification of the synthetic strategy also enabled the synthesis of a pilot tris-3-chloropiperidine (Tri-CeP) bearing three reactive meta-chloropiperidine moieties on the aromatic scaffold. A structure–reactivity relationship analysis of B?CePs suggests that the arrangement of the reactive units affects the DNA alkylating activity, while also revealing correlations between the electron density of the aromatic system and the reactivity with biologically relevant nucleophiles, both on isolated DNA and in cancer cells. Interestingly, all aromatic 3-chloropiperidines exhibited a marked cytotoxicity and tropism for 2D and 3D cultures of pancreatic cancer cells. Therefore, the new aromatic 3-chloropiperidines appear to be promising contenders for further development of mustard-based anticancer agents aimed at pancreatic cancers.
Highly Selective Carbon Dioxide Capture and Cooperative Catalysis of a Water-Stable Acylamide-Functionalized Metal–Organic Framework
Wang, Zhaoxu,Luo, Xin,Zheng, Baishu,Huang, Lu,Hang, Cheng,Jiao, Yinchun,Cao, Xiyang,Zeng, Wenjiang,Yun, Ruirui
, p. 1309 - 1314 (2018/04/02)
Incorporation of specific functionalities within the framework offers a significant opportunity to produce high-performance gas storage/separation and catalysis MOF materials. In this work, multifunctionalities, including hydrophobic methoxy groups, polar acylamide functionalities, and open copper(II) sites, have been successfully integrated into a twofold interpenetrated microporous MOF (HNUST-6, HNUST represents Hunan University of Science and Technology). HNUST-6 possesses permanent porosity, with a moderate BET surface area of 1093 m2 g–1 and high CO2 adsorption capacity (111 cm3 g–1 at 1 bar), with good selectivity for CO2 over CH4 (6.6) and N2 (30.3) at 273 K. Remarkably, this MOF material exhibits excellent water stability and its framework structure is retained after being immersed in boiling water. In addition, HNUST-6 demonstrates efficient catalytic activity as a cooperative catalyst in a tandem one-pot deacetalization Knoevenagel condensation reaction.
Coordination polymers of 5-substituted isophthalic acid
McCormick, Laura J.,Morris, Samuel A.,Slawin, Alexandra M. Z.,Teat, Simon J.,Morris, Russell E.
, p. 1123 - 1132 (2016/02/18)
The synthesis and characterisation of five coordination polymers - Ni2(mip)2(H2O)8·2H2O (1), Zn6(mip)5(OH)2(H2O)4·7.4H2O (2), Zn6
