Zusammenfassung
New terdentate facially binding ligands based on the 2-pyridinyl-alpha -ethanol skeleton were prepared as the racemates. Reaction with the enantiomerically pure (-)-(1S,4R)-camphanoyl chloride gave diastereomeric camphanic esters. The pure diastereomers were accessible by separating the diastercomeric esters with medium-pressure silica gel chromatography or fractional crystallization. X-ray ...
Zusammenfassung
New terdentate facially binding ligands based on the 2-pyridinyl-alpha -ethanol skeleton were prepared as the racemates. Reaction with the enantiomerically pure (-)-(1S,4R)-camphanoyl chloride gave diastereomeric camphanic esters. The pure diastereomers were accessible by separating the diastercomeric esters with medium-pressure silica gel chromatography or fractional crystallization. X-ray structure analysis of the pure camphanic esters established the absolute configurations of the 2-pyridinyt-alpha -alcohols. The enantiomerically pure alcohols were obtained after saponification of the diastereomerically pure esters.
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