The Effect of Alkyl Substituents on the Macrocycle Ring on Enantiomeric Recognition by Chiral Pyridino-18-Crown-6 for 1-Naphthylethylamine

This paper discusses the effect that various dialkyl substitutents on chiral pyridino-18-crown-6 ligands have on the molecular recognition of these ligands for the (R) and (S)-(alpha-(1-naphthyl)ethyl) ammonium perchlorate. We have systematically synthesized the necessary chiral pyridino-18-crown-6...

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Hauptverfasser:	Hathaway, J K, Zhu, L Y, Huszthy, P, Bradshaw, J S, Izatt, R M
Format:	Report
Sprache:	eng
Schlagworte:	ALKYL RADICALS AMINES AMMONIUM PERCHLORATE Atomic and Molecular Physics and Spectroscopy CALORIMETRY CHIRAL CYCLIC COMPOUNDS ENANTIOMERS ETHYL RADICALS LIGANDS MACROCYLES MOLECULAR STRUCTURE NAPHTHYL RADICALS Organic Chemistry Physical Chemistry PYRIDINES PYRIDINO-18-CROWN-6 RECOGNITION RINGS SUBSTITUENTS TITRATION
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Beschreibung
Zusammenfassung:	This paper discusses the effect that various dialkyl substitutents on chiral pyridino-18-crown-6 ligands have on the molecular recognition of these ligands for the (R) and (S)-(alpha-(1-naphthyl)ethyl) ammonium perchlorate. We have systematically synthesized the necessary chiral pyridino-18-crown-6 macrocycles and determined the extent of molecular recognition by titration calorimetry. This paper also discusses possible mechanisms of recognition.