Synthesis of new optically active pyridino- and pyridono-18-crown-6 type ligands containing four lipophilic chains
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 and benzylammonium perchlorate complexes of the unsubstituted pyridono ligand revealed, that, in contrast to the free ligand, in the complex the hydroxypyridine tautomer is present. (C) 2003 Elsevier Ltd. All rights reserved.
Synthesis of new optically active pyridino- and pyridono-18-crown-6 type ligands containing four lipophilic chains
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 and benzylammonium perchlorate complexes of the unsubstituted pyridono ligand revealed, that, in contrast to the free ligand, in the complex the hydroxypyridine tautomer is present. (C) 2003 Elsevier Ltd. All rights reserved.