@article {2480, title = {Enamides and Enesulfonamides as Nucleophiles: Formation of Complex Ring Systems through a Platinum(II)-Catalyzed Addition/Friedel-Crafts Pathway}, journal = {Journal of Organic Chemistry}, volume = {74}, number = {18}, year = {2009}, note = {ISI Document Delivery No.: 492LATimes Cited: 5Cited Reference Count: 90Kozak, Jennifer A. Dodd, Jennifer M. Harrison, Tyler J. Jardine, Katherine J. Patrick, Brian O. Dake, Gregory R.}, month = {Sep}, pages = {6929-6935}, type = {Article}, abstract = {Cyclic enamine derivatives (enesulfonamides and enamides) tethered to an 1-arylalkynyl fragment undergo a platinum(II)-catalyzed tandem alkyne addition/Friedel-Crafts ring closure to form nitrogen-containing polycyclic structures. Regioselectivity in the initial addition of the enesulfonamide or enamide nucleophile to the platinum(II)-alkyne complex is important. Electron-rich arenes and heterocycles led to the formation of products resulting from an Initial 6-endo cyclization. Twenty-three examples of this process are presented.}, keywords = {CATALYZED CYCLOISOMERIZATIONS, CLOSING, CYCLIZATION ROUTE, DIASTEREOSELECTIVE SYNTHESIS, ELECTRON-RICH OLEFINS, ENANTIOSELECTIVE REACTIONS, LYCOPODIUM ALKALOIDS, METATHESIS, N-ACYL-ENAMINES, NITROGEN-HETEROCYCLES, REARRANGEMENTS, SKELETAL}, isbn = {0022-3263}, url = {://000269656400004}, author = {Kozak, J. A. and Dodd, J. M. and Harrison, T. J. and Jardine, K. J. and Patrick, B. O. and Dake, G. R.} } @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 = {://000238269600063}, author = {Ayinla, R. O. and Schafer, L. L.} } @article {2888, title = {COMPLEX POLYMERIC CATIONS OF COPPER(I) WITH GRAPHITE-RELATED AND DIAMOND-RELATED LATTICES - CRYSTAL-STRUCTURES OF POLY-TRIS(MU-2,5-DIMETHYLPYRAZINE)DICOPPER(I) HEXAFLUOROPHOSPHATE AND POLY-BIS(MU-2,5-DIMETHYLPYRAZINE)COPPER(I) HEXAFLUOROPHOSPHATE}, journal = {Inorganic Chemistry}, volume = {32}, number = {9}, year = {1993}, note = {ISI Document Delivery No.: KZ801Times Cited: 94Cited Reference Count: 47}, month = {Apr}, pages = {1607-1611}, type = {Article}, abstract = {{Yellow crystals of composition [Cu2(2,5-me2pyz)3][PF6]2, 1, and orange-red ones of composition [Cu(2,5-me2-pyz)2] [PF6], 2, were obtained from the reaction Of Cu(ClO4)2-6H2O, KPF6, and 2,5-dimethylpyrazine in ethanol. Single-crystal X-ray diffraction studies on both are reported. Crystals of 1 are monoclinic}, keywords = {cobalt(II), EXCHANGE, LIGANDS, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURE, NITROGEN-HETEROCYCLES, PERCHLORATE, Pyrazine, SPECTRUM, TRIFLUOROMETHANESULFONATE}, isbn = {0020-1669}, url = {://A1993KZ80100015}, author = {Otieno, T. and Rettig, S. J. and Thompson, R. C. and Trotter, J.} } @article {2888, title = {COMPLEX POLYMERIC CATIONS OF COPPER(I) WITH GRAPHITE-RELATED AND DIAMOND-RELATED LATTICES - CRYSTAL-STRUCTURES OF POLY-TRIS(MU-2,5-DIMETHYLPYRAZINE)DICOPPER(I) HEXAFLUOROPHOSPHATE AND POLY-BIS(MU-2,5-DIMETHYLPYRAZINE)COPPER(I) HEXAFLUOROPHOSPHATE}, journal = {Inorganic Chemistry}, volume = {32}, number = {9}, year = {1993}, note = {ISI Document Delivery No.: KZ801Times Cited: 94Cited Reference Count: 47}, month = {Apr}, pages = {1607-1611}, type = {Article}, abstract = {{Yellow crystals of composition [Cu2(2,5-me2pyz)3][PF6]2, 1, and orange-red ones of composition [Cu(2,5-me2-pyz)2] [PF6], 2, were obtained from the reaction Of Cu(ClO4)2-6H2O, KPF6, and 2,5-dimethylpyrazine in ethanol. Single-crystal X-ray diffraction studies on both are reported. Crystals of 1 are monoclinic}, keywords = {cobalt(II), EXCHANGE, LIGANDS, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURE, NITROGEN-HETEROCYCLES, PERCHLORATE, Pyrazine, SPECTRUM, TRIFLUOROMETHANESULFONATE}, isbn = {0020-1669}, url = {://A1993KZ80100015}, author = {Otieno, T. and Rettig, S. J. and Thompson, R. C. and Trotter, J.} }