Synthesis of new optically active pyridino- and pyridono-18-crown-6 type ligands containing four lipophilic chains
作者： János Gerencsér , Nikoletta Báthori , Mátyás Czugler , Péter Huszthy , Mihály Nógrádi
DOI: 10.1016/S0957-4166(03)00590-1
关键词: Chemistry 、 Optically active 、 Ligand 、 Perchlorate 、 Stereochemistry 、 Stereocenter 、 Tautomer 、 18-Crown-6
摘要: Highly lipophilic enantiomerically pure pyridino- and pyridono-18-crown-6 type ligands containing four stereogenic centers to which butyl or butoxymethyl groups are attached have been synthesized. X-Ray analysis of the (R)-1-phenylethylammonium benzylammonium perchlorate complexes unsubstituted pyridono ligand revealed, that, in contrast free ligand, complex hydroxypyridine tautomer is present.
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