83841-01-4

Upstream product

• 100-00-5 4-chlorobenzonitrile 
• 112-27-6 2,2'-[1,2-ethanediylbis(oxy)]bisethanol 
• 100-02-7 4-nitro-phenol 
• 19249-03-7 triethylene glycol di-(p-toluenesulfonate) 
• 350-46-9 4-Fluoronitrobenzene 
• 108-95-2 phenol 
• 7204-16-2 2-(2-(2-phenoxyethoxy)ethoxy)ethan-1-ol 
• 1124-31-8 potassium 4-nitrophenolate 
• 128134-56-5 1-(4'-nitrophenoxy)-8-phenoxy-3,6-dioxaoctane 
• 53129-28-5 1,10-diphenyl-1,4,7,10-tetraoxaundecane 
• 31255-10-4 1,2-bis-(2-bromo-ethoxy)-ethane 

Downstream Products

• 83789-94-0 4,4'-(2,2'-(ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(oxy)dianiline 

Relevant academic research and scientific papers

Macrocyclic bis-urea receptor: Synthesis, crystal structure and phosphate binding properties

A macrocyclic bis-urea receptor (L1) and two acyclic bis-urea analogues (L2 and L3) have been synthesized. The crystal structure of L1 was obtained. The experimental results show that the receptor L1 has high selectivity to H2PO4 ?. Meanwhile, compared with the acyclic receptors L2 and L3, L1 has higher binding ability to H2PO4 ?. The results of density functional theory (DFT) calculations deepened our understanding on L1 conformations stability and its anion-binding property.

Liquid crystal dimers having vary oxyethylene flexible spacers

In this article, we are prepared that the liquid crystal dimers have aromatic-ester type mesogenic units or aromatic-Schiff base type mesogonic units and confirmed by 1H-NMR spectrometry. The mesomorphic and optical properties of the resultant dimers were studied by differential scanning calorimetry and polarizing optical microscopy.

Sandwich phosphate complexes of macrocyclic tris(urea) ligands and their rotation around the anion

Four heteroditopic macrocyclic ligands incorporating both anion coordination sites (tris-urea units) and a cation binding fragment (polyether) were designed for possible application in molecular devices. Sandwich-type phosphate complexes were formed, which display a reversible rotation around the anion upon protonation/deprotonation of phosphate and binding of the cation (Emim+).

Alkoxylation of 4-chloronitrobenzene with aliphatic alcohols and glycols in the presence of NaOH

The reaction of 4-chloronitrobenzene with aliphatic C1-n-C 4 alcohols and with mono-, di-, and triethylene glycols in the presence of NaOH in liquid ammonia at 15-50°C was studied.

Reversible anion-templated self-assembly of [2+2] and [3+3] metallomacrocycles containing a new dicopper(i) motif

A new dicopper(i) complex is reported that can be incorporated into extended architectures through multitopic carboxylate linkers; reversible carboxylate templation under pH control led to the formation of [2+2] and [3+3] metallomacrocycles.

Synthesis and Properties of a New Series of Troegerophanes

A new series of macrocyclic compounds with one or two Troeger base skeletons has been synthesized by condensing mono-, di-, tri-, and teraethyleneglycol bis(p-aminophenoxy) ethers with formalin in the presence of concentrated hydrochloric acid in ethanol at room temperature for 13 days. This simple one-step cyclization provided 19 in remarkably high yield (46%) and 17, 18, and 20 in yields reflecting the strain of the rings and statistical factors. Complexation with lithium thiocyanate was observed for 20, the structure of which was elucidated by X-ray crystallography.

New supramolecular hosts: Synthesis and cation binding studies of novel Troger's base-crown ether composites

A simple and straightforward synthesis of a novel class of supramolecular hosts containing the Troger's base moiety is reported. The cation binding properties of these macrocycles were investigated using Cram's picrate extraction method.

The Development of a New Nitrating Agent: The Unusual Regioselective Nitration of Diphenylpolyethylene Glycols and Phenylpolyethylene Glycols with Trimethylsilyl Nitrate - BF3OEt2

We have investigated the nitration of the following podands, 1-phenoxy-8-(2'-nitrophenoxy)-, 1-phenoxy-8-(4'-nitrophenoxy)-, and 1-(2',4'-dinitrophenoxy)-8-phenoxy-3,6-dioxaoctane (2, 3, and 4), and 1-(2',4'-dinitrophenoxy)-11-phenoxy-3,6,9-trioxaundecane (5), 1-phenoxy-3,6,9-trioxadecane (6), and 1-phenoxy-3,6,9,12-tetraoxatridecane (7), with trimethylsilyl nitrate catalyzed by BF3OEt2, which is soluble in nonpolar solvents.The reaction selectivity was measured by the ortho:para ratio of the nitrated products and was unusually large in CCl4.The structures of all isolated products, 1,8-bis(2'-nitrophenoxy)-, 1-(2'-nitrophenoxy)-8-(4'-nitrophenoxy)-, 1,8-bis(4'-nitrophenoxy)-, 1-(2',4'-dinitrophenoxy)-8-(2'-nitrophenoxy)-, and 1-(2',4'-dinitrophenoxy)-8-(4'-nitrophenoxy)-3,6-dioxaoctane (8, 9, 10, 11, and 12), 1-(2',4'-dinitrophenoxy)-11-(2'-nitrophenoxy)- and 1-(2',4'-dinitrophenoxy)-11-(4'-nitrophenoxy)-3,6,9-trioxaundecane (13 and 14), 1-(2'-nitrophenoxy)- and 1-(4'-nitrophenoxy)-3,6,9-trioxadecane (15 and 16), and 1-(2'-nitrophenoxy)- and 1-(4'-nitrophenoxy)-3,6,9,12-tetraoxatridecane (17 and 18), were confirmed by the independent preparation of these compounds using a modification of Joeger's method.We have invented a new nitrating system (trimethylsilyl nitrate and BF3OEt2) and have shown that the selectivity (o/p ratio of nitrated products) is unusually high in CCl4.

BIS(CROWN ETHER) DYES INCORPORATING AZOPHENOL STRUCTURE.

Three types of bis(crown ether) dyes bearing one or two azophenol units were synthesized, which may be expected to show different cation-complexing properties from the corresponding monocyclic crown ether dyes. The extraction of alkali and alkaline-earth metal salts with the crown ether dyes suggested that some cooperative action of the two adjacent crown ether moieties of the bis(crown ether)s occurs on complexing metal cations, although the bis(crown ether) effect is not very remarkable.