Novel chiral Oxa-bridged Calix[2]arene[2]triazine derivatives as NMR chiral reagents for enantioselective recognition of α-racemic carboxylic acids
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Inclusion Phenomena and Macrocyclic Chemistry"
DOI: 10.1007/s10847-019-00912-y
Abstract: A new family of chiral tetraoxacalix[2]arene[2]triazine receptors (2a–2c) have been synthesized efficiently in 69–73% yields. By 1H NMR spectroscopy, the chiral enantiodiscrimination ability of novel hosts against a series racemic carboxylic acids were examined. The… read more here.
Keywords: calix arene; triazine; carboxylic acids; recognition ... See more keywords
Chiral tetraoxacalix[2]arene[2]triazine-based organocatalysts for Enantioselective Aldol reactions
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.05.051
Abstract: Abstract Novel efficient chiral tetraoxacalix[2]arene[2]triazine-based organocatalysts have been designed and synthesized from the reaction of tetraoxacalix[2]arene[2]triazine with R/S-phenylethylamine or R/S-1-naphthylethylamine for the Aldol reaction of acetone with aromatic aldehydes to furnish the Aldol adducts in… read more here.
Keywords: tetraoxacalix arene; triazine based; based organocatalysts; chiral tetraoxacalix ... See more keywords
Vesicles Constructed with Chiral Amphiphilic Oxacalix[2]arene[2]triazine Derivatives for Enantioselective Recognition of Organic Anions.
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DOI: 10.1021/acsami.7b18723
Abstract: Chiral amphiphilic oxacalix[2]arene[2]triazine derivatives 1-3 bearing l-prolinol moieties were synthesized. The self-assembly behavior of the chiral macrocyclic amphiphiles was investigated. SEM, TEM, and DLS measurements demonstrated that 1 formed stable vesicles (size of ∼90 nm),… read more here.
Keywords: amphiphilic oxacalix; chiral amphiphilic; arene triazine; triazine derivatives ... See more keywords
Excellent performance of aromatic polyguanamines induced by multiple hydrogen bondable tetraazacalix[2]arene[2]-triazine ring in their main chain
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DOI: 10.1039/c9ra09136j
Abstract: A series of poly(guanamine) (c-PG)s containing tetraazacalix[2]arene[2]-triazine (mPDA2CyC2) were successfully prepared by solution polycondensation of mPDA2CyC2 with various aromatic diamines in an aprotic organic solvent with a lithium chloride additive (5 wt%) at 150 °C… read more here.
Keywords: arene triazine; tetraazacalix arene; excellent performance; multiple hydrogen ... See more keywords