@article {2495,
	title = {Broadening the Scope of Group 4 Hydroamination Catalysis Using a Tethered Ureate Ligand},
	journal = {Journal of the American Chemical Society},
	volume = {131},
	number = {51},
	year = {2009},
	note = {ISI Document Delivery No.: 543YATimes Cited: 12Cited Reference Count: 34Leitch, David C. Payne, Philippa R. Dunbar, Christine R. Schafer, Laurel L.},
	month = {Dec},
	pages = {18246-+},
	type = {Article},
	abstract = {A broadly applicable group-4-based precatalyst for the hydroamination of primary and secondary amines was developed. Screening experiments involving a series of amide and urea proligands led to the discovery of a tethered bis(ureate) zirconium complex with unprecedented reactivity in the intermolecular hydroamination of alkynes and the intramolecular hydroamination of alkenes. This catalyst system is effective with primary and secondary amines, 1,2-disubstituted alkenes, and heteroatom-containing functional groups, including ethers, silanes, amines, and heteroaromatics. The gem-disubstituent effect is not required for cyclization. The catalyst is generally regioselective for the anti-Markovnikov product of intermolecular alkyne hydroamination, and chemoselective for hydroamination over alpha-alkylation when forming 6- and 7-membered rings from aminoalkenes.},
	keywords = {ALKYNES, AMIDATE COMPLEXES, AMINES, AMINOALKENES, BOND FORMATION, INTRAMOLECULAR HYDROAMINATION, METAL-CATALYSTS, TITANIUM, UNACTIVATED ALKENES, ZIRCONIUM},
	isbn = {0002-7863},
	url = {<Go to ISI>://000273615800028},
	author = {Leitch, D. C. and Payne, P. R. and Dunbar, C. R. and Schafer, L. L.}
}
@article {2684,
	title = {Development of an Oxazole Conjunctive Reagent and Application to the Total Synthesis of Siphonazoles},
	journal = {Journal of Organic Chemistry},
	volume = {74},
	number = {23},
	year = {2009},
	note = {ISI Document Delivery No.: 523ONTimes Cited: 6Cited Reference Count: 120Zhang, Jianmin Polishchuk, Elena A. Chen, Jie Ciufolini, Marco A.},
	month = {Dec},
	pages = {9140-9151},
	type = {Review},
	abstract = {The preparation of 4-carbethoxy-5-methyl-2-(phenylsulfonyl)methyloxizole and Its use in the elaboration of more complex oxazoles are described. A total synthesis of the unique natural products siphonazoles A and B, illustrates an application of this building block. A discussion of the biological activity of the siphonazoles is also presented.},
	keywords = {1ST TOTAL-SYNTHESIS, ALLENYL ESTERS, CONJUGATED, CYANOBACTERIUM NOSTOC-MUSCORUM, CYTOTOXIC, DIAZONAMIDE-A, DOUBLE ELIMINATION PROTOCOL, GLYOXYLIC-ACID DERIVATIVES, INTRAMOLECULAR HYDROAMINATION, marine sponge, METABOLITES, NATURAL-PRODUCT HENNOXAZOLE},
	isbn = {0022-3263},
	url = {<Go to ISI>://000272083700026},
	author = {Zhang, J. M. and Polishchuk, E. A. and Chen, J. and Ciufolini,Marco A.}
}
@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 {2544,
	title = {Synthesis and structural studies of amido, hydrazido and imido zirconium(IV) complexes incorporating a diamido/diamine cyclam-based ligand},
	journal = {Dalton Transactions},
	number = {36},
	year = {2009},
	note = {ISI Document Delivery No.: 490IKTimes Cited: 4Cited Reference Count: 83Munha, Rui F. Veiros, Luis F. Duarte, M. Teresa Fryzuk, Michael D. Martins, Ana M.},
	pages = {7494-7508},
	type = {Article},
	abstract = {The preparation, characterisation and structural analysis of a series of zirconium(IV) complexes that incorporate the diamido/diamine macrocyclic ligand Bn(2)Cyclam (Bn(2)Cyclam = 1,8-dibenzyl-1,4,8,11-tetraazacyclotetradecane) are described. The reaction of one or two equivalents of the appropriate LiNHR reagents with [(Bn(2)Cyclam)ZrCl2] give the corresponding amido-chloride [(Bn(2)Cyclam)ZrCl(NHR)] (R = Bu-t, Ph-2,Ph-6-iPr) or bis(amido) [(Bn(2)Cyclam) Zr(NHR)(2)] (R = Pr-i, Bu-t, Ph-2,Ph-6-Me) complexes, respectively. Treatment of [(Bn(2)Cyclam)ZrCl(NH2,6- iPrPh)] with one equiv. of MgClMe gives the base-free, monomeric imido complex [(Bn(2)Cyclam)Zr(N2,6-iPrPh)]. The reaction of the tBu analog with MgClMe generates a dimeric bridging imido species [{(Bn(2)Cyclam)Zr}(2)(mu-NR)(2)], which can also be obtained by thermal decomposition of [(Bn(2)Cyclam)Zr(NHtBu)(2)] in toluene. The bis(hydrazido) complex [(Bn(2)Cyclam)Zr(NHNPh2)(2)] was obtained by reaction of [(Bn(2)Cyclam)ZrCl2] and two equiv. of LiNHNPh2. A hydrazido-chloride compound [(Bn(2)Cyclam)ZrCl(N(Ph)NBu(Ph))] was generated in a one-pot reaction between [(Bn(2)Cyclam)ZrCl2], LiBu and azobenzene. DFT calculations on [(Bn(2)Cyclam)ZrXY] complexes indicate that the coordination geometry adopted by these species is dictated by the steric bulk of the ligands X and Y, varying between six-coordinate prismatic and four-coordinate tetrahedral.},
	keywords = {ASYMMETRIC HYDROAMINATION, BASIS, BASIS-SETS, CATALYTIC HYDROAMINATION, EFFECTIVE CORE POTENTIALS, GAUSSIAN-TYPE, INTRAMOLECULAR HYDROAMINATION, MOLECULAR-ORBITAL METHODS, ORGANIC-MOLECULES, POLARIZATION FUNCTIONS, TRANSITION-METALS},
	isbn = {1477-9226},
	url = {<Go to ISI>://000269493900025},
	author = {Munha, R. F. and Veiros, L. F. and Duarte, M. T. and Fryzuk,Michael D. and Martins, A. M.}
}
@article {2683,
	title = {Total Synthesis of Siphonazoles by the Use of a Conjunctive Oxazole Building Block},
	journal = {Organic Letters},
	volume = {11},
	number = {11},
	year = {2009},
	note = {ISI Document Delivery No.: 452NFTimes Cited: 6Cited Reference Count: 47Zhang, Jianmin Ciufolini, Marco A.},
	month = {Jun},
	pages = {2389-2392},
	type = {Article},
	abstract = {The preparation of 4-carbethoxy-5-methyl-2-(phenylsulfonyl)methyloxazole and its use in the elaboration of more complex oxazoles are described. A total synthesis of the unique natural products, siphonazoles A and 13, illustrates an application of the new building block.},
	keywords = {ACCESS, CARBONYL-COMPOUNDS, CONDENSATION, CYCLOISOMERIZATION, DOUBLE ELIMINATION PROTOCOL, GOLD CATALYSIS, INTRAMOLECULAR HYDROAMINATION, LITHIATION, PHORBOXAZOLES, VIRGINIAMYCIN-M2},
	isbn = {1523-7060},
	url = {<Go to ISI>://000266546300042},
	author = {Zhang, J. M. and Ciufolini,Marco A.}
}
@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.}
}
