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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

Papers overview

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Review
2018
Review
2018
Furfural and 5-hydroxymethylfurfural stand out as bridges connecting biomass raw materials to the biorefinery industry. Their… Expand
Highly Cited
2012
Highly Cited
2012
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
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
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
▪ 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
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
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
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
Guinea-pig hearts were perfused with varying concentrations of the norepinephrine precursors, tyrosine, 3,4… Expand
Highly Cited
1965
Highly Cited
1965
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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