41757-99-7Relevant articles and documents
The crown ether size and stereochemistry affect the self-assembly, hydrogelation, and cellular interactions of crown ether/peptide conjugates
Lin, Hsin-Chieh,Mohammed, Mohiuddin,Saddik, Abdelreheem Abdelfatah
supporting information, p. 9961 - 9970 (2020/11/18)
The discovery of crown ethers and their unique interactions with ions make them play a key role in supramolecular chemistry. In this study, we have developed a new type of amphiphilic crown ether (DB18C6, DB24C8)-conjugated phenylalanine dipeptides for th
A new class of flavonoids bearing macrocyclic polyethers by stereoselective photochemical cycloaddition reaction
Ishikawa, Hiroki,Uemura, Naohiro,Taira, Ryo,Sano, Kento,Yoshida, Yasushi,Mino, Takashi,Kasashima, Yoshio,Sakamoto, Masami
, p. 3911 - 3916 (2019/06/18)
A new class of flavonoids bearing cyclic polyethers involving a phenyl ring was conveniently provided by the intramolecular photochemical dimerization of 2-chromonecarboxylic esters. Irradiation of 2-chromonecarboxylate with a polyether tethered at both ends promoted intramolecular [2 + 2] cyclobutane formation leading to 14- to 27-membered cyclic polyethers. The efficiency depended on the substituted position of the phenyl ring, with ortho- and meta-substituted derivatives giving cycloadducts in good chemical yields and quantum efficiencies, whereas the para-derivatives were inert toward photolysis. X-ray crystallographic analysis revealed that the stereochemistry of the macrocyclic cycloadducts exhibited C2-symmetry.
Strong induced-fit binding of viologen and pyridine derivatives in adjustable porphyrin cavities
Deutman, Alexander B. C.,Smits, Jan M. M.,De Gelder, René,Elemans, Johannes A. A. W.,Nolte, Roeland J. M.,Rowan, Alan E.
, p. 11574 - 11583 (2015/02/02)
The synthesis and binding properties of new porphyrin cage compounds consisting of a rigid diphenylglycoluril part, which is connected via flexible bis(ethyleneoxy) spacers to a (metallo)porphyrin "roof", are reported. Binding of viologen guests and pyrid