@article {4467, title = {Synthesis and X-ray structural characterization of the ruthenium beta-diketonato complexes: Ru(hfac)(3), cis-Ru(hfac)(2)(MeCN)(2), and cis-Ru(hfac)(acac)(MeCN)(2)}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {11}, year = {1999}, note = {ISI Document Delivery No.: 253FETimes Cited: 12Cited Reference Count: 40}, month = {Nov}, pages = {1821-1833}, type = {Article}, abstract = {{Ru(hfac)(3) (2) was synthesized via peroxide oxidation of the Ru(II) species [Na][Ru(hfac)(3)] (1) (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate). Treatment of either 1 or 2 with CF3SO3H in MeCN generated cis-Ru(hfac)(2)(MeCN)(2) (3). Ru(acac)(2)(hfac) (4) (acac = acetylacetonate) was generated by addition of hfac to an EtOH solution of cis-[Ru(acac)(2)(MeCN)(2)] [CF3SO3]. Subsequent treatment of 4 with CF3SO3H in MeCN yielded cis-Ru(acac)(hfac)(MeCN)(2) (7). Syntheses of [Na][Ru(hfac)(2)(acac)] (5) and Ru(hfac)(2)(acac) (6) are also reported. The complexes were characterized generally by elemental analysis, cyclic voltammetry, UV-vis, NMR, and IR spectroscopies. The structures of 2,3, and 7 were established by X-ray crystallographic analyses. Crystals of 2 are monoclinic with a = 8.7781(4)}, keywords = {1, 2 KINDS, 5, 5-hexafluoroacetylacetonate acetonitrile complexes, ACETONITRILE, acetylacetonate, beta-diketonato complexes, BLUE, CRYSTAL-STRUCTURES, ELECTROCHEMICAL, HALF-WAVE POTENTIALS, MIXED-LIGAND RUTHENIUM(III), PROPERTIES, RADIOSENSITIZING ACTIVITY, ruthenium, SOLUTION, SOLUTION CHEMISTRY, TRIS(BETA-DIKETONATO)RUTHENIUM(III) COMPLEXES}, isbn = {0008-4042}, url = {://000083545300016}, author = {Baird, I. R. and Rettig, S. J. and James, Brian R. and Skov, K. A.} } @article {4214, title = {Novel and improved syntheses of 5,15-diphenylporphyrin and its dipyrrolic precursors}, journal = {Journal of Porphyrins and Phthalocyanines}, volume = {2}, number = {6}, year = {1998}, note = {ISI Document Delivery No.: 209DJTimes Cited: 53Cited Reference Count: 66}, month = {Nov-Dec}, pages = {455-465}, type = {Article}, abstract = {Optimized syntheses of 5,15-diphenylporphyrin (DPP, 1) and its dipynolic precursors are described. A novel procedure for the synthesis of dipyrromethane (2), prepared by hydrodesulfurization of the corresponding di-2-pyrrolylthione (8), is presented, as well as an improved method to isolate large quantities of 5-phenyldipyrromethane (4), prepared by the acid-catalysed condensation of pyrrole with benzaldehyde. These dipyrromethanes are key reagents in two high-yield (2+2)-type syntheses of DPP. 5-Phenyldipyrromethane was formylated to provide 1-formyl- (11) and 1,9-diformyl-5-phenyldipyrromethane (12), and reduction of 11 provided the corresponding hydroxymethyl compound 13, These compounds (11-13), however, were much less efficient precursors to DPP. Two polypyrrolic compounds, 1,1,2,2-dipyrrolylethane (9) and 5,10-diphenyltripyrrane (10), potentially useful for the synthesis of porphyrinic macrocycles, were isolated as side-products during the dipyrromethane and 5-phenyldipyrromethane syntheses. (C) 1998 John Wiley \& Sons, Ltd.}, keywords = {1, 10-diphenyltripyrrane, 2, 2+2 synthesis, 2-tetrapyrrolylethane, 5, 5-phenyldipyrromethane, ARYLPORPHYRINS, BIPHENYL, CHEMISTRY, COMPLEXES, dipyrromethane, macrocycles, MESO, meso-diphenylporphyrin synthesis, MESOSUBSTITUTED PORPHYRINS, METALLOPORPHYRINS, STEPWISE SYNTHESES, SUBSTITUTED PORPHYRIN}, isbn = {1088-4246}, url = {://000081032700001}, author = {Bruckner, C. and Posakony, J. J. and Johnson, C. K. and Boyle, R. W. and James, Brian R. and Dolphin, D.} } @article {7050, title = {STRUCTURAL STUDIES OF ORGANOBORON COMPOUNDS .48. 1,4-DIPHENYL-3,3-6,6-BIS(TETRAMETHYLENE)-2,5,7-TRIOXA-3,6-DIAZONIA-1,4-D IBORATABICYCLO(2.2.1)HEPTANE}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {69}, number = {8}, year = {1991}, note = {ISI Document Delivery No.: GC235Times Cited: 7Cited Reference Count: 33}, month = {Aug}, pages = {1222-1226}, type = {Article}, abstract = {{The reaction of N-hydroxypyrrolidine with either oxybis(diphenylborane) or phenylboronic acid gives 1,4-diphenyl-3,3:6,6-bis(tetramethylene)-2,5,7-trioxa-3,6-diazoniia-1,4- diboratabicyclo[2.2.1]heptane in moderate yield. Crystals of the product are orthorhombic}, keywords = {2, 4-DIBORATABICYCLO(2.2.1)HEPTANE RING, 5, 6-DIAZONIA-1, 7-TRIOXA-3, crystal structure, CRYSTAL-STRUCTURE, MOLECULAR-STRUCTURE, organoboron compound, SYSTEM, X-RAY-DIFFRACTION}, isbn = {0008-4042}, url = {://A1991GC23500008}, author = {Kliegel, W. and Riebe, U. and Rettig, S. J. and Trotter, J.} }