62107-81-7

Upstream product

• 62107-80-6 2,2'-(3,6,9-Trioxaundecamethylendioxy)dibenzoesaeure-diethylester 
• 118-61-6 2-hydroxy-benzoic acid ethyl ester 
• 119-36-8 methyl salicylate 
• 31255-26-2 1-bromo-2-{2-[2-(2-bromoethoxy)ethoxy]-ethoxy}ethane 
• 214202-54-7 methyl-2-{2-[2-(2-{2-[2-(methoxycarbonyl)phenoxy]ethoxy}ethoxy)ethoxy]ethoxy}benzoate 

Downstream Products

• 88672-69-9 2,2-oxybis(3-oxapentyleneoxy)bis 
• 343806-07-5 2-{2-[2-(2-{2-[2-(chlorocarbonyl)phenoxy]ethoxy}ethoxy)ethoxy]ethoxy}-1-benzenecarbonyl chloride 

Relevant academic research and scientific papers

Efficient synthesis of macrocyclic dilactam crown ethers by fast addition method

A simple and convenient method for preparing macrocyclic dilactam crown ethers containing N2O5, N3O3, N 3O4, N3O5 and N2O 10 donor atoms with 18-32 membered

New fluorimetric alkali and alkaline earth metal cation sensors based on noncyclic crown ethers by means of intramolecular excimer formation of pyrene

New fluorescent reagents, 2,2′-[oxybis(3-oxapentamethyleneoxy)]-bis[N-(1-pyrenylmethyl)benzamide)] (4) and its analogues (2, 3, and 5) which have two pyrenes at the both terminals of polyoxyethylene compounds, were synthesized, and their complexation behavior with alkaline earth cations was investigated by fluorescence spectrometry, fluorescence lifetimes, and 1H NMR spectrometry. These reagents (3-5) showed strong intramolecular excimer emissions around at 480 nm in the fluorescence spectra. On the complexation with alkaline earth metal cations, the increase of monomer emission around at 400 nm accompanied by the disappearance of intramolecular excimer emission of free reagents was observed. These reagents formed a 1:1 complex, and the order of complex formation constants was Ca2+ ? Sr2+ > Ba2+ > Mg2+ > Li+ for all reagents. 1H NMR spectra of these complexes with alkaline earth cations suggested the helical structures of the complexes. Fluorescence spectral changes at the formation of complexes depended on the chain length of the oxyethylene moiety and metal cations. In all cases, the formation of helical structures at the complexation was supported by the 1H NMR spectra.

Ligand Structure and Complexation, LI. - Multidentate Neutral Ligands with Variable Cavities and Pseudo Cavities

New cyclic and non-cyclic neutral ligand systems have been synthesized.They contain repeating oligoethylene glycol ethers and carboxamide functions, which allow attractive interactions between single chain segments and with terminal groups.Crystalline com