149525-64-4Relevant academic research and scientific papers
Organic fluorescent molecular cage compound and preparation method thereof
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Paragraph 0056; 0062-0065, (2020/08/09)
The invention relates to an organic fluorescent molecular cage compound and a preparation method thereof. The organic fluorescent molecular cage compound is prepared by reaction of a polyaldehyde arylcompound and a polyamino aryl compound. The technical problem of on-site separation and recognition of nitro aromatic compounds is solved by quickly preparing industrially produced organic fluorescent molecular cage materials. The preparation process is simple and controllable, the reaction can be performed at room temperature, a catalyst and sample pretreatment are not needed, and the prepared organic fluorescent molecular cage has remarkable specific response to nitro aromatic compounds.
Design and synthesis of cage-like NADH model molecule intermediate with multi-chiral centers
Zhang, Tong,Bai, Cui-Bing,Wu, Yue-Hua,Wang, Nai-Xing,Xu, Bao-Cai,Yan, Zhan,Xing, Yalan
, p. 410 - 416 (2019/02/05)
Studying NADH molecules is one of the most active areas in biomimetic research. It is important to design novel and efficient chiral NADH model molecules. Herein, a cage-like NADH model with multi-chiral centers was designed, and key intermediates have been synthesized. In this study, we found that pentafluorophenoxy group is an excellent leaving group for our synthetic route.
A cascade Aza-Cope/Aza-prins cyclization leading to piperidine derivatives
Nallasivam, Jothi L.,Fernandes, Rodney A.
, p. 2012 - 2022 (2015/03/18)
The cascade aza-Cope/aza-Prins cyclization of homoallylamines to give substituted piperidines has been explored. The use of glyoxalic acid as the carbonyl component afforded bicyclic structures as a result of the internal carboxylate anion trapping the intermediate cation. The unimolecular bis-, tris-, and tetrakis(homoallylamine)s efficiently delivered the appended bis-, tris- and tetrakis(piperidine-4-ol)s (tripod and crucifix shape, respectively) as new entities. The latter compound served as an excellent ligand in the Suzuki-Miyaura cross-coupling reaction to synthesize incrustoporin. The cascade aza-Cope/aza-Prins cyclization of homoallylamines to give substituted piperidines is described. A unimolecular tetrapiperidine derivative, which resulted from this strategy, was employed as a ligand in the Suzuki-Miyaura cross-coupling reaction of an α-iodobutenolide with an arylboronic acid in an efficient synthesis of incrustoporin and its analogues.
Trimethoxybenzene- and trimethylbenzene-based compounds bearing imidazole, indole and pyrrole groups as recognition units: Synthesis and evaluation of the binding properties towards carbohydrates
Rosien, Jan-Ruven,Seichter, Wilhelm,Mazik, Monika
, p. 6569 - 6579 (2013/09/24)
The aim of the study was to evaluate the potential of trimethoxybenzene- and trimethylbenzene-based compounds bearing imidazole or indole groups as recognition sites in the complexation of carbohydrates. Representatives of these compounds were prepared and their binding properties toward selected carbohydrates evaluated. The results of the binding studies were compared with those obtained for the prepared pyrrole bearing analogues and for the previously described triethylbenzene-based receptors.
Toward reactant encapsulation for substrate-selectivity
De Rycke, Nicolas,Couty, Fran?ois,David, Olivier R.P.
supporting information; experimental part, p. 462 - 466 (2012/02/01)
A synthetic tris-(bis-(aminomethyl)pyridine) receptor was prepared in excellent yields via reversible imine condensation strategy. Catalytic activity in Henry reactions of the corresponding copper(II) complex was studied. Capitalizing on previous works by
C3-symmetric proline-functionalized organocatalysts: Enantioselective michael addition reactions
Moorthy, Jarugu Narasimha,Saha, Satyajit
, p. 6359 - 6365 (2011/03/17)
C3-Symmetric, tripodal catalyst 4 based on 1,3,5- triethylbenzene, which incorporates the features of a molecular receptor, is shown to catalyze Michael addition reactions ofcarbonyl compounds to β-nitrostyrenes in a high stereoselectivity (up to 99:1a dr and up to 98%ee). Copyright
Benzene-based tripodal isothiouronium compounds as sulfate ion receptors
Seong, Hye Ran,Kim, Dae-Sik,Kim, Sung-Gon,Choi, Heung-Jin,Ahn, Kyo Han
, p. 723 - 727 (2007/10/03)
Novel benzene-based tripodal isothiouronium receptors are synthesized for the selective recognition of tetrahedral oxoanions. The binding study by isothermal titration calorimetry indicates that the cationic receptors bind sulfate ions preferably in a tripodal mode, while they show a mixed binding mode toward phosphate ion. The tripodal isothiouronium receptors show large ΔG0 values toward sulfate ions in methanol, which are entropy driven. The results demonstrate that a subtle structural constraint can lead to different binding modes toward structurally similar anions.
Self-assembly of ball-shaped molecular complexes in water
Grawe, Thomas,Schrader, Thomas,Zadmard, Reza,Kraft, Arno
, p. 3755 - 3763 (2007/10/03)
We present a simple and versatile access to spheroidal molecular assemblies with pronounced stability in highly polar solvents. These complexes are composed of doubly and triply charged complementary building blocks based on ammonium or amidinium cations
Topological correspondence between crystal structure of 2,4,6-trimethylbenzene-1,3,5-tris(methanaminium) 2,4,6-trimethylbenzene-1,3,5-triacetate and cesium chloride
Podlaha, Jaroslav,Cisarova, Ivana,Alexander, Daniel,Holy, Petr,Kraus, Tomas,Zavada, Jiri
, p. 1587 - 1596 (2007/10/03)
Solid-state self-assembly of 2,4,6-trimethylbenzene-1,3,5-tris(methanaminium) 2,4,6-trimethylbenzene-1,3,5-triacetate is mediated by hydrogen bonding. It gives rise to three-dimensional network of hydrogen bonds in which each trication is coordinated with
