Results 231 to 240 of about 300,802 (279)
Some of the next articles are maybe not open access.

Application of Ethers and Crown Ethers

Ethers, polyethers, and crown ethers have received particular interest in various research fields owing to advantageous features of the materials such as good resistance to heat, radiation, corrosion, impact ability, and creep deformation, nontoxicity, good hydrolysis resistance, flame retardance, excellent dimensional stability and electrical ...
openaire   +1 more source

Papaverine Crown Ethers

Angewandte Chemie International Edition in English, 1976
F, Vögtle, K, Frensch
openaire   +2 more sources

Crown Ethers and Cryptands

1991
Crown Ethers and Cryptands introduces the broad and basic principles of crown ether and cryptand chemistry at the advanced undergraduate, graduate and working professional level. The book provides a brief introduction, outlining the history of the field and goes on to cover syntheses, complexation of cations and molecules, complex structures ...
openaire   +1 more source

The synthesis of novel crown ethers Part.I,Coumarin Derivatives of Crown Ethers,(#)

2022
, The synthesis and structural characterisation of coumarin derivatives of some macrocyclic ethers was reported. They were obtained from 1,2,3-trihydroxy and 1,2,4-trihydroxyphenols by reacting with ketoesters. The reaction of dihydroxy coumarins with dichlorides of polyglycols in potassium carbonate /DMF/ water afforded the crown ethers in good yields.
openaire   +1 more source

Construction of Covalent Organic Frameworks with Crown Ether Struts

Angewandte Chemie - International Edition, 2021
Lipeng Zhai, Changjun Peng, Jun Hu
exaly  

Dibenzo-21-crown-7-ether contained 6FDA-based polyimide membrane with improved gas selectivity

Separation and Purification Technology, 2021
Bolun Yang, Chunhai Yi, Beibei Zhang
exaly  

Unsaturated crown ethers. 3. Syntheses of stilbeno crown ethers

The Journal of Organic Chemistry, 1985
Yoshihisa Inoue   +4 more
openaire   +1 more source

ChemInform Abstract: UNSATURATED CROWN ETHERS: STILBENO‐CROWN ETHERS

Chemischer Informationsdienst, 1982
Y. INOUE   +4 more
openaire   +1 more source

Synthesis of Crown Ethers

Crown ethers are macrocyclic compounds that can form complexes with a wide range of cations as well as neutral guest species. They have widespread usage in various fields of fundamental and applied chemistry. Here, we introduce the various synthetic methods for the synthesis of aliphatic and aromatic crown ethers to access compounds that could carry ...
openaire   +1 more source

Crown Ethers with Fluctuating Ring Size (“Breathing Crown Ethers”)

Angewandte Chemie International Edition in English, 1979
Gerhard Schröder, Walter Witt
openaire   +1 more source

Home - About - Disclaimer - Privacy