240797-46-0Relevant academic research and scientific papers
Studies on [3]pseudorotaxane formation from a bis-azacrown derivative as host and imidazolium ion-derivatives as guest
Mandal, Amal Kumar,Suresh, Moorthy,Das, Amitava
, p. 4811 - 4817 (2011)
A new host molecule, having two azacrown derivatives bridged by luminescent naphthalene diimide functionality, is found to form a [3]pseudorotaxane derivative with imidazolim ion-based guest molecules in non-polar solvents through hydrogen-bonded adduct f
A triptycene-based bis(crown ether) host: Complexation with both paraquat derivatives and dibenzylammonium salts
Han, Tao,Chen, Chuan-Feng
, p. 1069 - 1072 (2006)
A novel triptycene-based bis(crown ether) host (1) incorporating two dibenzo-24-crown-8 ether moieties has been synthesized. It can form not only a new bis[2]pseudorotaxane with dibenzylammonium salts but also stable clip-shaped complexes with paraquat de
Synthesis of enantiopure P-stereogenic diphosphacrowns using P-stereogenic secondary phosphines
Morisaki, Yasuhiro,Kato, Ryosuke,Chujo, Yoshiki
, p. 2769 - 2774 (2013)
A new synthetic route to enantiopure P-stereogenic benzodiphosphacrowns using a P-stereogenic secondary bisphosphine as the key building block is reported. Syntheses of the enantiomer and P-stereogenic crowns with various ring structures, as well as debor
Controlling Multivalent Interactions in Triply-Threaded Two-Component Superbundles
Balzani, Vincenzo,Clemente-Leon, Miguel,Credi, Alberto,Lowe, James N.,Badjic, Jovica D.,Stoddart, J. Fraser,Williams, David J.
, p. 5348 - 5360 (2003)
We have investigated the 1H NMR spectra, the absorption spectra, the fluorescence spectra and decays, and the electrochemical properties of i) a tritopic receptor in which three benzo[24]crown-8 macrorings are fused onto a triphenylene core, ii
Photoinduced Electron Transfer Involving a Naphthalimide Chromophore in Switchable and Flexible [2]Rotaxanes
Colasson, Benoit,Credi, Alberto,Ventura, Barbara
, p. 534 - 542 (2020)
The interlocking of ring and axle molecular components in rotaxanes provides a way to combine chromophoric, electron-donor and electron-acceptor moieties in the same molecular entity, in order to reproduce the features of photosynthetic reaction centers.
Folding and unfolding movements in a [2]pseudorotaxane
Suresh, Moorthy,Mandal, Amal Kumar,Kesharwani, Manoj K.,Adarsh,Ganguly, Bishwajit,Kanaparthi, Ravi Kumar,Samanta, Anunay,Das, Amitava
, p. 138 - 144 (2011)
A new dibenzo[24]crown-8 derivative (1) was synthesized and functionalized with aromatic moieties such as naphthalene and coumarin units. These two fluorophores are known to form an effective FRET (Forster resonance energy transfer) pair, and this formed
Photocontrolled morphological conversion and chiral transfer of a snowflake-like supramolecular assembly based on azobenzene-bridged bis(dibenzo-24-crown-8) and a cholesterol derivative
Wang, Hui-Juan,Zhang, Heng-Yi,Wu, Huang,Dai, Xian-Yin,Li, Pei-Yu,Liu, Yu
, p. 4499 - 4502 (2019)
A snowflake-like supramolecular clockwise-helical assembly was fabricated via the host-guest interaction of trans-azobenzene-bridged bis(dibenzo-24-crown-8) (trans-1) and a cholesterol derivative, while a snowflake-like supramolecular non-helical assembly
Luminescent complexes of Re(I) and Ru(II) with appended macrocycle groups derived from 5,6-dihydroxyphenanthroline: Cation and anion binding
Lazarides, Theodore,Miller, Thomas A.,Jeffery, John C.,Ronson, Tanya K.,Adams, Harry,Ward, Michael D.
, p. 528 - 536 (2005)
A range of ligands in which a macrocydic unit is fused to a 1,10-phenanthroline unit has been prepared starting from 5,6- dihydroxyphenanthroline. The ligands are L1 in which the pendant ligand is 18-crown-6; L2, in which the pendant
Hetero dimer from tetrakisammonium cavitand and tetratopic crown ether cavitand
Ihm, Chaesang,Paek, Kyungsoo
, p. 3263 - 3266 (2007)
Hetero dimer 6 [PF6-]4 between tetrakis(m-ammonium)cavitand 2 [PF6-]4 and tetrakis(dibenzo-25-crown-8)cavitand 5 was formed in CDCl3 at room temperature. The effects of solvent p
New crown-carrier Cα,α-disubstituted glycines derived from α-methyl-(L)-DOPA
Wright, Karen,Melandri, Francesca,Cannizzo, Caroline,Wakselman, Michel,Mazaleyrat, Jean-Paul
, p. 5811 - 5820 (2002)
The side-chain catechol function of α-methyl-(L)-DOPA was utilized for the synthesis of a new series of crown-carrier Cα,α-disubstituted glycines. During N-protection of α-methyl-(L)-DOPA methyl ester (H-Mdp-OMe) with Boc anhydride, the formation of N,O-di-Boc derivatives was observed. Selective aminolysis of the catechol tert-butyl carbonate group was achieved using pyrrolidine as nucleophile. Treatment of the resulting Boc-Mdp-OMe by Cs2CO3 in MeOH, followed by bis-O-alkylation with cyclization using various polyethyleneglycol ditosylates or catechol-derived bis-polyethyleneglycol ditosylates in DMF at 60°C, led to the derivatives Boc-[15-C-5]-Mdp-OMe, Boc-[18-C-6]-Mdp-OMe, Boc-[benzo-18-C-6]-Mdp-OMe, Boc-[benzo-24-C-8]-Mdp-OMe and then after saponification, to the corresponding Nα-protected amino acids. The tripeptides Fmoc-Ala-[18-C-6]-Mdp-Ala-OMe and Boc-Aib-[18-C-6]-Mdp-Ala-OMe were prepared in solution by using Ala and Aib UNCAs for coupling at the N terminus of the [18-C-6]-Mdp residue and the EDC/HOAt method for coupling Ala at its C terminus.
