@article { ISI:000343585800004,
	title = {Alkene hydroamination with a chiral zirconium catalyst. Connecting ligand design, precatalyst structure and reactivity trends},
	journal = {Inorganica Chimica Acta},
	volume = {422},
	year = {2014},
	month = {OCT 1},
	pages = {14-20},
	abstract = {<p>A set of chiral bis(amidate) proligands were synthesized based on a 3,3\&$\#$39;-substituted biphenyldiamine backbone. Zirconium precatalysts were synthesized using these proligands in situ and used for catalytic testing for intramolecular alkene hydroamination, achieving moderate enantiomeric excesses. Ligands containing electron-withdrawing substituents were found to be exceptionally reactive, in some cases catalyzing formation of pyrrolidine products at room temperature. Substitution at the 3,3\&$\#$39;-position of the biphenyldiamine backbone was observed to significantly impact N,O-chelate binding modes, which in turn affect observed enantioselectivities. (C) 2014 Elsevier B. V. All rights reserved.</p>},
	issn = {0020-1693},
	doi = {10.1016/j.ica.2014.07.073},
	author = {Yonson, Neal and Yim, Jacky C. -H. and Schafer, Laurel L.}
}
