Chiral pyridinyloxazolidine ligands and copper chloride complexes

Abstract

Two chiral bidentate C1-symmetric 1,3-oxazolidine ligands (1 and 2) and coordination complexes with copper(II) chloride (Cu₂Cl₄(C₁₅H₁₄N₂O)₂ (3) and [Cu₂Cl₄(C₁₆H₁₆N₂O)₂]·CH₃OH (4)) were synthesized and characterized by X-ray crystallographic techniques. The ligands maintain the same stereochemistry within all structures, resulting in an anti-relationship between the 2,4-substituents. Structures 3 and 4 dimerized through bridging chlorides and 3 has an extended hydrogen bonding network resulting in an infinite 1D chain.

Keywords:

• Oxazolidine
• Chiral ligands
• Copper(II) chloride dimer

Acknowledgements

We gratefully acknowledge support from startup funds from the University of South Carolinaand the National Science Foundation CAREER Award CHE-1055616. We would also like to thank Professor Hanno zur Loye for helpful discussions.