@article {1272, title = {A convenient way of making arsoxanes (RAsO)(n), X-ray crystal structure of (m-F3CC6H4AsO)(4)}, journal = {Applied Organometallic Chemistry}, volume = {19}, number = {1}, year = {2005}, note = {ISI Document Delivery No.: 893NZTimes Cited: 2Cited Reference Count: 22}, month = {Jan}, pages = {129-131}, type = {Article}, abstract = {The reactions of RLi (R = t-Bu, m-F3CC6H4) with bis(dimethylamino)chloroarsine in diethyl ether at room temperature result in the formation of t-butyl-bis(dimethylamino)arsine (1) and m-trifluoromethylphenyl-bis(dimethylamino)arsine (2). Compounds 1 and 2 were hydrolysed in water solution in the presence of sodium carbonate to give the oxides (t-BuAsO)(n) (3) and (m-F3CC6H4AsO)(n) (4) respectively. The X-ray crystal structure of 4 shows the molecule to be cyclotetrameric with pyramidal arsenic. Copyright (C) 2004 John Wiley Sons, Ltd.}, keywords = {ALKYLCYCLOARSOXANES, arsenic, ARSINE, arsine oxide, crystal structure, m-trifluromethylphenylarsine oxide, m-trifluromethylphenylarsoxane, NMR, RING, t-butylarsarsoxane, t-butylarsine oxide}, isbn = {0268-2605}, url = {://000226727800024}, author = {Sun, H. S. and Patrick, B. O. and Cullen, W. R.} } @article {777, title = {Inner C-cyanide addition and nucleophilic addition to Ni(II) N-confused porphyrins}, journal = {Chemical Communications}, number = {9}, year = {2003}, note = {ISI Document Delivery No.: 668WMTimes Cited: 19Cited Reference Count: 9}, pages = {1062-1063}, type = {Article}, abstract = {Inner C-cyanide addition and subsequent addition of a methoxy group were observed in the reactions of Ni(II) N-confused tetra(p-tolyl)porphyrin with sodium methoxide and DDQ.}, keywords = {COMPLEX, ISOMER, RING}, isbn = {1359-7345}, url = {://000182316200017}, author = {Xiao, Z. W. and Patrick, B. O. and Dolphin, D.} } @article {553, title = {Facile synthesis of N,N {\textquoteright}-dimethylated N-confused porphyrins}, journal = {Tetrahedron}, volume = {58}, number = {44}, year = {2002}, note = {ISI Document Delivery No.: 608QCTimes Cited: 4Cited Reference Count: 8}, month = {Oct}, pages = {9111-9116}, type = {Article}, abstract = {N-Confused tetraarylporphyrins react with CH3I in the presence of Na2CO3 to give, in high yield, N,N{\textquoteright}-dimethylated N-confused porphyrin salts, which are mixtures of structural isomers. The structures of the major isomers were determined by X-ray diffraction and NMR spectroscopic analyses. These N,N{\textquoteright}-dimethylated N-confused tetraarylporphyrin salts generate singlet oxygen when irradiated at long wavelengths in the visible region, and therefore, are potential sensitizers for photodynamic therapy. (C) 2002 Elsevier Science Ltd. All rights reserved.}, keywords = {ISOMER, METHYLATION, N, N {\textquoteright}-dimethylated N-confused porphyrin, N-confused porphyrin, RING, singlet oxygen, TETRAPHENYLPORPHYRIN}, isbn = {0040-4020}, url = {://000178857300026}, author = {Xiao, Z. W. and Dolphin, D.} } @article {3748, title = {A meso-unsubstituted N-confused porphyrin prepared by rational synthesis}, journal = {Chemical Communications}, number = {18}, year = {1996}, note = {ISI Document Delivery No.: VJ635Times Cited: 49Cited Reference Count: 21}, month = {Sep}, pages = {2141-2142}, type = {Article}, abstract = {Condensation of a tetraalkyl-alpha,alpha-dipyrromethane dialdehyde in a MacDonald-type [2+2]-condensation with a trialkyl-alpha,beta-dipyrromethane gives a heptaalkyl N-confused porphyrin.}, keywords = {ISOMER, PORPHYCENE, RING}, isbn = {1359-7345}, url = {://A1996VJ63500016}, author = {Liu, B. Y. and Bruckner, C. and Dolphin, D.} } @article {7203, title = {IRON PORPHYRIN CATALYZED OXIDATION OF LIGNIN MODEL COMPOUNDS - THE OXIDATION OF VERATRYL ALCOHOL AND VERATRYL ACETATE}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {70}, number = {8}, year = {1992}, note = {ISI Document Delivery No.: JW564Times Cited: 13Cited Reference Count: 43}, month = {Aug}, pages = {2314-2318}, type = {Article}, abstract = {meso-Tetra(2,6-dichloro-3-sulfonatophenyl)porphyrin iron chloride catalyzes the oxidation of 3,4-dimethoxybenzyl alcohol (veratryl alcohol) in aqueous solution to give veratraldehyde along with demethoxylation and ring-cleavage products. The isolation of a direct ring-cleavage product from the oxidation of veratryl acetate in aqueous solution supports the previously proposed ring-cleavage mechanisms. The oxidation in methanol, however, does not lead to ring-cleavage products. When veratryl alcohol was oxidized in methanol, solvent was found to be incorporated into the 3-position of veratryl alcohol, giving new insight into the mechanism of oxidation.}, keywords = {3, 4-DIMETHOXYBENZYL ALCOHOL, BASIDIOMYCETE PHANEROCHAETE-CHRYSOSPORIUM, BOND-CLEAVAGE, C, CLEAVAGE, DEGRADING ENZYME, DIARYLPROPANE OXYGENASE, EXTRACELLULAR, HEME-ENZYME, LIGNINASES, RING, SPECTRAL CHARACTERIZATION, WHITE ROT BASIDIOMYCETE}, isbn = {0008-4042}, url = {://A1992JW56400025}, author = {Cui, F. T. and Dolphin, D.} } @article {7225, title = {{METAL PYRAZOLATE POLYMERS .3. SYNTHESIS AND STUDY OF CU(I) AND CU(II) COMPLEXES OF 4-XDMPZ (WHERE X = H, CL, BR, I, AND CH3 FOR CU(I) AND X = H, CL, BR, AND CH3 FOR CU(II)}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {70}, number = {4}, year = {1992}, note = {ISI Document Delivery No.: JH895Times Cited: 33Cited Reference Count: 24}, month = {Apr}, pages = {1121-1128}, type = {Article}, abstract = {The copper(I) complexes [Cu(4-Xdmpz)]3 (where X = H, Cl, Br, I and CH3; dmpz = 3,5-dimethylpyrazolate) and the copper(II) complexes [Cu(4-Xdmpz)2]x have been synthesized and characterized. Qualitative solubility, infrared spectroscopic, and differential scanning calorimetric studies are reported for all complexes. Mass spectra support trimeric formulations for the copper(I) complexes. Scanning electron micrographs and powder X-ray diffractograms have been recorded for the copper(II) compounds. Electronic and EPR spectroscopic studies as well as magnetic susceptibility studies from 2 to 300 K are also reported for the copper(II) compounds, which are proposed to have polymeric chain structures. The magnetic data reveal strong antiferromagnetic interactions in all four of the copper(II) compounds. The data have been analysed employing an isotropic Heisenberg model for antiferromagnetic coupling in extended chain polymers. Values of the exchange coupling constant, J, are determined as -58, -61, -66, and -66 cm-1 for the X = H, CH3, Cl, and Br complexes respectively. The X = Cl compound exhibits an abrupt decrease in magnetic susceptibility below 40 K and possible causes of this anomalous behaviour are discussed.}, keywords = {MAGNETIC-PROPERTIES, RAY CRYSTAL-STRUCTURE, RING}, isbn = {0008-4042}, url = {://A1992JH89500015}, author = {Ehlert, M. K. and Storr, A. and Thompson, R. C.} } @article {7225, title = {{METAL PYRAZOLATE POLYMERS .3. SYNTHESIS AND STUDY OF CU(I) AND CU(II) COMPLEXES OF 4-XDMPZ (WHERE X = H, CL, BR, I, AND CH3 FOR CU(I) AND X = H, CL, BR, AND CH3 FOR CU(II)}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {70}, number = {4}, year = {1992}, note = {ISI Document Delivery No.: JH895Times Cited: 33Cited Reference Count: 24}, month = {Apr}, pages = {1121-1128}, type = {Article}, abstract = {The copper(I) complexes [Cu(4-Xdmpz)]3 (where X = H, Cl, Br, I and CH3; dmpz = 3,5-dimethylpyrazolate) and the copper(II) complexes [Cu(4-Xdmpz)2]x have been synthesized and characterized. Qualitative solubility, infrared spectroscopic, and differential scanning calorimetric studies are reported for all complexes. Mass spectra support trimeric formulations for the copper(I) complexes. Scanning electron micrographs and powder X-ray diffractograms have been recorded for the copper(II) compounds. Electronic and EPR spectroscopic studies as well as magnetic susceptibility studies from 2 to 300 K are also reported for the copper(II) compounds, which are proposed to have polymeric chain structures. The magnetic data reveal strong antiferromagnetic interactions in all four of the copper(II) compounds. The data have been analysed employing an isotropic Heisenberg model for antiferromagnetic coupling in extended chain polymers. Values of the exchange coupling constant, J, are determined as -58, -61, -66, and -66 cm-1 for the X = H, CH3, Cl, and Br complexes respectively. The X = Cl compound exhibits an abrupt decrease in magnetic susceptibility below 40 K and possible causes of this anomalous behaviour are discussed.}, keywords = {MAGNETIC-PROPERTIES, RAY CRYSTAL-STRUCTURE, RING}, isbn = {0008-4042}, url = {://A1992JH89500015}, author = {Ehlert, M. K. and Storr, A. and Thompson, R. C.} } @article {7281, title = {STRUCTURAL STUDIES OF ORGANOBORON COMPOUNDS .50. 4-(2-HYDROXY-2,2-DIPHENYLACETYL)-6,6-PENTAMETHYLENE-2-PHENYL-1,3-DIOXA-4 -AZA-2-BORACYCLOHEXANE AND 4-[2,2-DIFLUORO-5,5-BIS(4-METHOXYPHENYL)-1,3-DIOXA-2-BORATA-4-CYCLOPENTY LIDENE]-6,6-PENTAMETHYLENE-2-PHEN}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {70}, number = {4}, year = {1992}, note = {ISI Document Delivery No.: JH895Times Cited: 7Cited Reference Count: 53}, month = {Apr}, pages = {1176-1187}, type = {Article}, abstract = {{The preparation of the organoboron compounds 4-(2-hydroxy-2,2-diphenylacetyl)-6,6-pentamethylene-2-phenyl-1,3-dioxa-4 -aza-2-boracyclohexane, 6, 4-(2,2-difluoro-5,5-diphenyl-1,3-dioxa-2-borata-4-cyclopentylidene)-6,6- pentamethylene-2-phenyl-1,3,-dioxa-4-azonia-2-boracyclohexane, 14a, and 4-[2,2-difluoro-5,5-bis(4-methoxyphenyl)-1,3-dioxa-2-borata-4-cyclopenty lidene]-6,6-pentamethylene-2-phenyl-1,3-dioxa-4-azonia-2-boracyclohexane , 14b, are reported. Crystals of 6 are triclinic, P1BAR}, keywords = {ADJACENT ACYL LIGANDS, CARBON BOND FORMATION, COORDINATED MOLECULES, CRYSTAL, HYDROXAMIC ACIDS, LENGTHS, RING}, isbn = {0008-4042}, url = {://A1992JH89500021}, author = {Kliegel, W. and Preu, L. and Schumacher, U. and Rettig, S. J. and Trotter, J.} } @article {7054, title = {STRUCTURAL STUDIES OF ORGANOBORON COMPOUNDS .44. 2,3-DIHYDRO-3-HYDROXY-2,2-TETRAMETHYLENE-4H-BENZOXAZIN-4-ONE AND ITS DIFLUOROBORON CHELATE, 2,2-DIFLUORO-4,4-TETRAMETHYLENE-1,3,5-TRIOXA-3A-AZONIA-2-BORATA-2,3,4,5- TETRAHYDRO-1H-CYCLOPENTA[A]NAPHTHALENE}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {69}, number = {4}, year = {1991}, note = {ISI Document Delivery No.: FL979Times Cited: 4Cited Reference Count: 28}, month = {Apr}, pages = {673-680}, type = {Article}, abstract = {{The reaction of 2,3-dihydro-3-hydroxy-2,2-tetramethylene-4H-benzoxazin-4-one, 2, and diethyl ether-boron trifluoride yields the difluoroboron chelate 2,2-difluoro-4,4-tetramethylene-1,3,5-trioxa-3a-azonia-2-borata-2,3,4,5- tetrahydro-1H-cyclopenta[a]naphthalene, 6, in high yield. There are two crystal forms of 2: 2a, triclinic, P1BAR}, keywords = {ADJACENT ACYL LIGANDS, ANALOGS, BORON COMPOUND, CARBON BOND FORMATION, COMPLEXES, COORDINATED MOLECULES, CRYSTAL, crystal structure, organoboron compound, RING}, isbn = {0008-4042}, url = {://A1991FL97900014}, author = {Kliegel, W. and Tajerbashi, M. and Rettig, S. J. and Trotter, J.} }