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Crown Ethers

Known as: Crown Ethers [Chemical/Ingredient], Ethers, Crown, crown ether 
Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or… Expand
National Institutes of Health

Related topics

Related topics

43 relations

Narrower (35)

1,5-dinaphtho-32-crown-81,5-dinaphtho-38-crown-101-aza-12-crown-412-crown-4
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Broader (1)

Crown Compounds
CryptandsIn Bloodagonistsantagonists & inhibitors
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Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Review
2018
Review
2018
How Catalysts and Experimental Conditions Determine the Selective Hydroconversion of Furfural and 5-Hydroxymethylfurfural.
Furfural and 5-hydroxymethylfurfural stand out as bridges connecting biomass raw materials to the biorefinery industry. Their… Expand
Highly Cited
2012
Highly Cited
2012
Self-healing supramolecular gels formed by crown ether based host-guest interactions.
Automatic repair: a polymer with pendent dibenzo[24]crown-8 units (purple in picture) was cross-linked by two bisammonium salts… Expand
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Highly Cited
2011
Highly Cited
2011
Selective, Nickel-Catalyzed Hydrogenolysis of Aryl Ethers
A catalyst that cleaves aryl-oxygen bonds but not carbon-carbon bonds may help improve lignin processing. Selective… Expand
Highly Cited
2010
Highly Cited
2010
Rhodium-catalyzed oxidative cycloaddition of benzamides and alkynes via C-H/N-H activation.
The oxidative cycloaddition of benzamides and alkynes has been developed. The reaction utilizes Rh(III) catalysts in the presence… Expand
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Highly Cited
2005
Highly Cited
2005
THE EDIACARA BIOTA: Neoproterozoic Origin of Animals and Their Ecosystems
▪ Abstract The Ediacara biota (575–542 Ma) marks the first appearance of large, architecturally complex organisms in Earth… Expand
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Highly Cited
2001
Highly Cited
2001
Influence of structural variation in room-temperature ionic liquids on the selectivity and efficiency of competitive alkali metal salt extraction by a crown ether.
An improved method for the preparation of 1-alkyl-3-methylimidazolium hexafluorophosphates provides a series of room-temperature… Expand
Highly Cited
2000
Highly Cited
2000
Studies on the mechanism of B(C(6)F(5))(3)-catalyzed hydrosilation of carbonyl functions
The strong organoborane Lewis acid B(C(6)F(5))(3) catalyzes the hydrosilation (using R(3)SiH) of aromatic and aliphatic carbonyl… Expand
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Highly Cited
1997
Highly Cited
1997
Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials
Chemical sensors respond to the presence of a specific analyte in a variety of ways. One of the most convenient is a change in… Expand
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Highly Cited
1965
Highly Cited
1965
ELUCIDATION OF THE RATE-LIMITING STEP IN NOREPINEPHRINE BIOSYNTHESIS IN THE PERFUSED GUINEA-PIG HEART.
Guinea-pig hearts were perfused with varying concentrations of the norepinephrine precursors, tyrosine, 3,4… Expand
Highly Cited
1965
Highly Cited
1965
QUANTITATIVE ISOLATION AND GAS--LIQUID CHROMATOGRAPHIC ANALYSIS OF TOTAL DIETARY AND FECAL NEUTRAL STEROIDS.
SUMMARY A method for isolation and quantification of fecal neutral steroids is described which allows studies to be made of… Expand
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