Ferrosalen and ferrosalen-type ligands: Structural modulation and applications in asymmetric catalysis
Document Type
Article
Publication Date
5-9-2011
Abstract
Several ferrosalen and ferrosalen-type ligands, 1-10, were prepared and fully characterized. The structure of one of these ligands ligated to Cu(II) was determined by single-crystal X-ray diffraction analysis. In comparison with the parent ligand 1, the two six-membered rings of ligand 2 are not aromatized and the synthesis was more facile. Diastereoisomers 3 and 4, containing substituents on the ethylene chain, were synthesized. The aromatized versions of 3 and 4, namely 5 and 6, were also prepared. Further modulation of the ethylene backbone produced ligands 7 and 8. Replacing the Cp ligands with Cp* and Cp Ph5 gave ligands 9 and 10, respectively. All these ligands were tested for catalytic asymmetric reactions, including the Co(III)-catalyzed carbonyl-ene reaction, Al(III)-catalyzed Strecker reaction, and Al(III)-catalyzed silylcyanation of aldehyde. © 2011 American Chemical Society.
Publication Title
Organometallics
Recommended Citation
Zhang, X.,
Luck, R.,
&
Fang, S.
(2011).
Ferrosalen and ferrosalen-type ligands: Structural modulation and applications in asymmetric catalysis.
Organometallics,
30(9), 2609-2616.
http://doi.org/10.1021/om2002206
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8200