17178-10-8Relevant academic research and scientific papers
2,3-Dihydro-2-methoxyethylimino-1,3-dimethylimidazole - A Novel Hemilabile Coordinating Chelate Ligand [1]
Kuhn, Norbert,Grathwohl, Martin,Nachtigal, Christiane,Steimann, Manfred
, p. 704 - 710 (2001)
The bifunctional 2,3-dihydro-2-methoxyethylimino-1,3-dimethylimidazole (C8H15N3O, 10) is obtained from the reaction of methoxyethyl tosylate (7) and 2,3-dihydro-2-imino-1,3-dimethylimidazole (8) followed by deprotonation i
Synthesis and Enantiomer Recognition of Dipodands and Crown Ethers Containing the 2,3:6,7-Dibenzobicyclonona-2,6-diene Residue as the Chiral Subunit
Naemura, Koichiro,Fukunaga, Rinko,Komatsu, Masanori,Yamanaka, Masatoshi,Chikamatsu, Hiroaki
, p. 83 - 88 (1989)
Five new optically active crown ethers and six optically active dipodands are reported.The crown ethers were synthesized by using (+)-(1S,4R,5S,8R)-2,3:6,7-dibenzobicyclonona-2,6-diene-4,8-diol and (+)-(1S,4R,5S,8R)-4,8-bis(hydroxymethyl)-2,3:6,7-d
Explorations of the solubilizing effectiveness of CH3OCH2CH2O substituents in the photocyclizations of some 1,2-diarylethylenes to [n]phenacenes
Bohen, Alyssa A.,Mullane, Kimberly C.,Bohen, Joseph M.,Mallory, Clelia W.,Mallory, Frank B.
, p. 3342 - 3345 (2015)
We have previously published many photocyclizations of 1,2-diarylethylenes to produce zig-zag aromatic ring systems with n = 5, 7, and 11 fused benzene rings. We invented the name [n]phenacenes for these compounds. To increase their solubilities we attach
Exchange coupling mediated through-bonds and through-space in conformationally constrained polyradical scaffolds: Calix[4]arene nitroxide tetraradicals and diradical
Rajca, Andrzej,Mukherjee, Sumit,Pink, Maren,Rajca, Suchada
, p. 13497 - 13507 (2006)
Calix[4]arenes constrained to the 1,3-alternate conformation and functionalized at the upper rim with four and two tert-butylnitroxides have been synthesized and characterized by X-ray crystallography, magnetic resonance (EPR and 1H NMR) spectr
PEG-modified aziridines for stereoselective synthesis of water-soluble fulleropyrrolidines
Kazakova, Angelina V.,Konev, Alexander S.,Zorin, Ivan M.,Poshekhonov, Igor S.,Korzhikov-Vlakh, Viktor A.,Khlebnikov, Alexander F.
, p. 9864 - 9873 (2019)
Diastereoselective synthesis of water-soluble fullerene compounds bearing a pharmacophore pyrrolofullerene-2′,5′-dicarboxylate unit is reported. The stereocontrol of the product configuration is achieved through stereospecificity of two consecutive concer
Design and synthesis of aloe-emodin derivatives as potent anti-tyrosinase, antibacterial and anti-inflammatory agents
Liu, Jinbing,Wu, Fengyan,Chen, Changhong
, p. 5142 - 5146 (2015)
Twenty aloe-emodin derivatives were designed, synthesized, and their biological activities were evaluated. Some compounds displayed potent tyrosinase inhibitory activities, especially, compounds with thiosemicarbazide moiety showed more potent inhibitory
Designing Nonfullerene Acceptors with Oligo(Ethylene Glycol) Side Chains: Unraveling the Origin of Increased Open-Circuit Voltage and Balanced Charge Carrier Mobilities
Cui, Junjie,Park, Jung-Hwa,Kim, Dong Won,Choi, Min-Woo,Chung, Hae Yeon,Kwon, Oh Kyu,Kwon, Ji Eon,Park, Soo Young
supporting information, p. 2481 - 2488 (2021/07/26)
Despite the recent rapid development of organic solar cells (OSCs), the low dielectric constant (?r=3–4) of organic semiconducting materials limits their performance lower than inorganic and perovskite solar cells. In this work, we introduce oligo(ethylene glycol) (OEG) side chains into the dicyanodistyrylbenzene-based non-fullerene acceptors (NIDCS) to increase its ?r up to 5.4. In particular, a NIDCS acceptor bearing two triethylene glycol chains (NIDCS-EO3) shows VOC as high as 1.12 V in an OSC device with a polymer donor PTB7, which is attributed to reduced exciton binding energy of the blend film. Also, the larger size grain formation with well-ordered stacking structure of the NIDCS-EO3 blend film leads to the increased charge mobility and thus to the improved charge mobility balance, resulting in higher JSC, FF, and PCE in the OSC device compared to those of a device using the hexyl chain-based NIDCS acceptor (NIDCS-HO). Finally, we fabricate NIDCS-EO3 devices with various commercial donors including P3HT, DTS-F, and PCE11 to show higher photovoltaic performance than the NIDCS-HO devices, suggesting versatility of NIDCS-EO3.
Tuning the Molecular Packing of Self-Assembled Amphiphilic PtII Complexes by Varying the Hydrophilic Side-Chain Length
Herkert, Lorena,Selter, Philipp,Daniliuc, Constantin G.,B?umer, Nils,Palakkal, Jasnamol P.,Fernández, Gustavo,Hansen, Michael Ryan
supporting information, p. 4617 - 4626 (2021/02/09)
Understanding the relationship between molecular design and packing modes constitutes one of the major challenges in self-assembly and is essential for the preparation of functional materials. Herein, we have achieved high precision control over the supramolecular packing of amphiphilic PtII complexes by systematic variation of the hydrophilic side-chain length. A novel approach of general applicability based on complementary X-ray diffraction and solid-state NMR spectroscopy has allowed us to establish a clear correlation between molecular features and supramolecular ordering. Systematically increasing the side-chain length gradually increases the steric demand and reduces the extent of aromatic interactions, thereby inducing a gradual shift in the molecular packing from parallel to a long-slipped organization. Notably, our findings highlight the necessity of advanced solid-state NMR techniques to gain structural information for supramolecular systems where single-crystal growth is not possible. Our work further demonstrates a new molecular design strategy to modulate aromatic interaction strengths and packing arrangements that could be useful for the engineering of functional materials based on PtII and aromatic molecules.
Styryl xanthine derivatives and uses thereof (by machine translation)
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Paragraph 0174; 0176; 0177; 0178; 0179, (2019/08/02)
The invention discloses styryl xanthine derivatives and application, and particularly, relates to a novel styryl xanthine derivative and a pharmaceutical composition containing the same, and can be used as selective adenosine A. 2A Are antagoni
Copper-Catalyzed Multicomponent Reaction of DABCO·(SO2)2, Alcohols, and Aryl Diazoniums for the Synthesis of Sulfonic Esters
Wang, Yang,Deng, Lingling,Deng, Yu,Han, Jianlin
, p. 4674 - 4680 (2018/04/26)
A Cu-catalyzed multicomponent cascade reaction of DABCO·(SO2)2 (DABSO), alcohol, and aryl diazonium tetrafluoroborate was developed which afforded sulfonic esters in moderate to good chemical yields. In this reaction, the SO2 surrogate DABSO was used for the first time in the synthesis of sulfonic aliphatic esters. This multicomponent reaction was carried out under mild conditions and tolerated a wide range of substrates, which provides a new and efficient strategy for the synthesis of sulfonic esters.
