@article {2491,
	title = {The Direct Synthesis of Unsymmetrical Vicinal Diamines from Terminal Alkynes: A Tandem Sequential Approach for the Synthesis of Imidazolidinones},
	journal = {Synthesis-Stuttgart},
	number = {1},
	year = {2009},
	note = {ISI Document Delivery No.: 395LSTimes Cited: 6Cited Reference Count: 84Lee, Alison V. Sajitz, Melanie Schafer, Laurel L.Sp. Iss. SI},
	month = {Jan},
	pages = {97-104},
	type = {Article},
	abstract = {The combination of titanium-catalyzed anti-Markovnikov hydroamination of terminal alkynes with the Strecker reaction is used in the synthesis of unsymmetrical vicinal diamines via the one-pot synthesis of alpha-cyanoamines. This methodology is Further applied to the efficient synthesis of imidazolidinones. An easy-to-use bis(amidate)titanium precatalyst permits efficient approaches to heterocyclic chemistry from terminal alkynes.},
	keywords = {AMINES, ANTI-MARKOVNIKOV, ASYMMETRIC-SYNTHESIS, CATALYZED INTERMOLECULAR HYDROAMINATION, HETEROCYCLES, HYDROAMINATION, IMIDO COMPLEXES, INTRAMOLECULAR HYDROAMINATION, LIGANDS, SCOPE, tandem reactions, TITANIUM, TITANIUM PRECATALYST, VINYLARENES},
	isbn = {0039-7881},
	url = {<Go to ISI>://000262526200012},
	author = {Lee, A. V. and Sajitz, M. and Schafer, L. L.}
}
@article {1332,
	title = {Bis(amidate) titanium precatalyst for the intermolecular hydroamination of allenes},
	journal = {Inorganica Chimica Acta},
	volume = {359},
	number = {9},
	year = {2006},
	note = {ISI Document Delivery No.: 052YITimes Cited: 25Cited Reference Count: 64},
	month = {Jun},
	pages = {3097-3102},
	type = {Article},
	abstract = {A bis(amidate)-bis(amido) titanium complex (5) is an efficient precatalyst for the regioselective intermolecular hydroamination of substituted allenes. Arylamines react quickly with a 5 mol\% precatalyst loading at 90 degrees C to give the ketimine product, which can be reduced to give substituted amines. With precatalyst loading of 10 mol\% and temperatures of 120 degrees C alkyl amines can be used as viable substrates for the hydroamination of substituted allenes. (c) 2006 Elsevier B.V. All rights reserved.},
	keywords = {ALKENES, allenes, amidate ligands, AMIDO COMPLEXES, CATALYST, CYCLIZATION, HYDROAMINATION, IMIDO COMPLEXES, INTRAMOLECULAR HYDROAMINATION, NITROGEN-HETEROCYCLES, ORGANOLANTHANIDE-CATALYZED HYDROAMINATION, precatalyst, TERMINAL ALKYNES, titanium complex, UNPROTECTED AMINO OLEFINS, VINYLARENES},
	isbn = {0020-1693},
	url = {<Go to ISI>://000238269600063},
	author = {Ayinla, R. O. and Schafer, L. L.}
}
@article {1456,
	title = {Group 4 bis(pyrimidinoxide) complexes. Investigations of electronic effects in catalytic hydroamination},
	journal = {Organometallics},
	volume = {25},
	number = {22},
	year = {2006},
	note = {ISI Document Delivery No.: 094IJTimes Cited: 22Cited Reference Count: 130Lee, Alison V. Schafer, Laurel L.},
	month = {Oct},
	pages = {5249-5254},
	type = {Review},
	abstract = {Substituted pyrimidinols, acidic aromatic alcohols, were used as proligands to synthesize metal complexes of Ti and Zr. These new pseudotetrahedral complexes were investigated as catalysts for the hydroamination of alkynes and alkenes. The stabilized anion of the pyrimidinoxide ligand results in enhanced electrophilicity at the metal center. These electronically modified complexes are catalytically active, but their enhanced reactivity results in reduced selectivity in comparison with the related bis(phenoxide) complexes in alkyne hydroamination. This reactivity was used to advantage in the cyclohydroamination of select aminoalkene substrates with the Zr bis(pyrimidinoxide) complex.},
	keywords = {ALKENES, ANTI-MARKOVNIKOV HYDROAMINATION, ARYLOXIDE, BIS(AMIDATE) TITANIUM PRECATALYST, HYDROAMINATION, IMIDO COMPLEXES, INTERMOLECULAR, LIGANDS, MEDIATED INTRAMOLECULAR, OXIDATIVE AMINATION, TERMINAL ALKYNES},
	isbn = {0276-7333},
	url = {<Go to ISI>://000241232800013},
	author = {Lee, A. V. and Schafer, L. L.}
}
@article {1060,
	title = {Intramolecular hydroamination of unactived olefins with Ti(NMe2)(4) as a precatalyst},
	journal = {Organic Letters},
	volume = {7},
	number = {10},
	year = {2005},
	note = {ISI Document Delivery No.: 924NCTimes Cited: 104Cited Reference Count: 59},
	month = {May},
	pages = {1959-1962},
	type = {Article},
	abstract = {[GRAPHICS] Commercially available Ti(NMe2)(4) has been used effectively as a precatalyst in a facile protocol for the intramolecular hydroamination of aminoalkenes to yield pyrrolidine and piperidine heterocyclic products with isolated yields up to 92\%. Germinally substituted substrates display the highest reactivity. This precatalyst is also effective for the hydroamination of activated internal alkenes, providing access to more complex heterocyclic target molecules.},
	keywords = {ALKENE HYDROAMINATION, ALKYNE, AMIDO COMPLEXES, ANTI-MARKOVNIKOV, CATALYZED INTERMOLECULAR HYDROAMINATION, GROUP-3 METALS, HYDROAMINATION, IMIDO COMPLEXES, REACTIVITY, TITANIUM, ZIRCONIUM},
	isbn = {1523-7060},
	url = {<Go to ISI>://000228984500019},
	author = {Bexrud, J. A. and Beard, J. D. and Leitch, D. C. and Schafer, L. L.}
}
@article {1287,
	title = {Structure, bonding, and reactivity of Ti and Zr amidate complexes: DFT and X-ray crystallographic studies},
	journal = {Inorganic Chemistry},
	volume = {44},
	number = {24},
	year = {2005},
	note = {ISI Document Delivery No.: 986ZLTimes Cited: 21Cited Reference Count: 75},
	month = {Nov},
	pages = {8680-8689},
	type = {Article},
	abstract = {Easily prepared and highly modular organic amide proligands have been used to synthesize a series of new bis(amidate)-bis(amido) Ti and Zr complexes via protonolysis. These complexes have been structurally characterized by NMR spectroscopy and X-ray crystallography. The solid-state molecular structures of these complexes indicate that the amidate ligands bind to the metal centers in an exclusively bidentate fashion, resulting in discrete monomeric species. Geometric isomerism in these species is highly dependent upon the steric characteristics of the proligands utilized in the synthesis. In solution, these complexes are observed to isomerize on the NMR time scale, with one isomer being predominant. Bonding in the bis(amidate)-bis(amido) complexes was investigated by DFT calculations. The geometric isomers predicted by theory matched the experimentally observed results, within experimental error. The orbitals associated with amidate-metal bonding are energetically well below the frontier orbitals. The HOMO in these complexes is a pi orbital associated with amido ligand-to-metal bonding character, while the LUMO in all cases is a vacant d orbital on the metal center.},
	keywords = {ALKYNYL GROUPS, C-H BONDS, ENHANCED REACTIVITY, HYDROAMINATION, IMIDO COMPLEXES, INTERMOLECULAR, OLEFIN POLYMERIZATION, PROPYLENE POLYMERIZATION, SI-H, TITANIUM CATALYSTS, ZIRCONIUM(IV) COMPLEXES},
	isbn = {0020-1669},
	url = {<Go to ISI>://000233488100008},
	author = {Thomson, R. K. and Zahariev, F. E. and Zhang, Z. and Patrick, B. O. and Wang, Y. A. and Schafer, L. L.}
}
@article {1287,
	title = {Structure, bonding, and reactivity of Ti and Zr amidate complexes: DFT and X-ray crystallographic studies},
	journal = {Inorg. Chem.},
	volume = {44},
	number = {24},
	year = {2005},
	note = {ISI Document Delivery No.: 986ZLTimes Cited: 21Cited Reference Count: 75},
	month = {Nov},
	pages = {8680-8689},
	type = {Article},
	abstract = {<p>Easily prepared and highly modular organic amide proligands have been used to synthesize a series of new bis(amidate)-bis(amido) Ti and Zr complexes via protonolysis. These complexes have been structurally characterized by NMR spectroscopy and X-ray crystallography. The solid-state molecular structures of these complexes indicate that the amidate ligands bind to the metal centers in an exclusively bidentate fashion, resulting in discrete monomeric species. Geometric isomerism in these species is highly dependent upon the steric characteristics of the proligands utilized in the synthesis. In solution, these complexes are observed to isomerize on the NMR time scale, with one isomer being predominant. Bonding in the bis(amidate)-bis(amido) complexes was investigated by DFT calculations. The geometric isomers predicted by theory matched the experimentally observed results, within experimental error. The orbitals associated with amidate-metal bonding are energetically well below the frontier orbitals. The HOMO in these complexes is a pi orbital associated with amido ligand-to-metal bonding character, while the LUMO in all cases is a vacant d orbital on the metal center.</p>},
	keywords = {ALKYNYL GROUPS, C-H BONDS, ENHANCED REACTIVITY, HYDROAMINATION, IMIDO COMPLEXES, INTERMOLECULAR, OLEFIN POLYMERIZATION, PROPYLENE POLYMERIZATION, SI-H, TITANIUM CATALYSTS, ZIRCONIUM(IV) COMPLEXES},
	isbn = {0020-1669},
	url = {<Go to ISI>://000233488100008},
	author = {Thomson, R. K. and Zahariev, F. E. and Zhang, Z. and Patrick, B. O. and Y. A. Wang* and L. L. Schafer*}
}
