Abstract
A novel tridentate chiral imidazolium hexafluorophosphate, a precursor for N-heterocyclic carbene (NHC) ligand, was synthesized from (S)-proline in five steps in 24% overall yield. The compound was characterized by NMR and elemental analysis. Its molecular structure was determined by X-ray diffraction analysis. This chiral compound has two stereogenic centers which are within two chelating side chains and its specific rotation is -19.6°.
Received: 2011-8-20
Accepted: 2011-10-23
Published Online: 2011-11-29
Published in Print: 2011-12-01
©2011 by Walter de Gruyter Berlin Boston
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