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Synthesis and characterization of aryl(trifluoromethyl)bismuth compounds (R-C"6H"4)"3"-"nBi(CF"3)"n [R=H, 4-CH"3, 4-CF"3, 3-F, 4-F; n=1 and 2] and the reactions of (C"6H"5)"3"-"n"nBi(CF"3)"n [n=0-3] with benzoylpyridinium chloride

Kirij, N.V. ; Pasenok, S.V. ; Yagupolskii, Y.L. ; [et al.]

Amsterdam : Elsevier

Journal of Fluorine Chemistry 69 (1994), S. 219-223

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ISSN: 0022-1139

Keywords: Aryl(trifluoromethyl)bismuth compounds ; Benzoylpyridinium chloride ; Inductive parameters ; Metathesis reactions ; NMR spectroscopy ; Resonance parameters ; Synthesis

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/0022-1139(94)03134-7

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Lewis-Säuren initiierte Synthesen von Xenon-Oxo-Verbindungen - eine 129X-NMR-StudieHerrn Professor Joseph Grobe zum 60. Geburtstage am 2. November 1991 gewidmet (1992)

Cremer-Lober, B. ; Butler, H. ; Naumann, D. ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für anorganische Chemie 607 (1992), S. 34-40

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ISSN: 0044-2313

Keywords: Xenon-oxo compounds ; 129Xe n.m.r. study ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Lewis-Acid Initiated Syntheses of Xenon-Oxo Compounds - a 129Xe-NMR StudyThe reaction of XeF2 with B(OR)3 yield FXeOR (R: SO2CF3) and Xe(OR)2 (R: COCF3), respectively. In the second case the intermediate formation of FXeOCOCF3 is detectable. In a solution of XeF2 and BF3 · O(CH3)2 in CD3CN the cation [FXe.NCCD3]+ can be observed. The syntheses of FXeOR (R: SO2CF3, SO2C4F9) and Xe(OR)2 (R:COCF3, COC2F5) also succeed in the reaction of XeF2 with the corresponding alkali metal sulfonates and carboxylates in the presence of BF3 · O(CH3)2. Due to the 129Xe-NMR spectra the mechanism of formation and the bond types of these partly new derivatives are discussed.

Notes: Bei den Reaktionen von XeF2 mit B(OR)3 entstehen FXeOR (R: SO2CF3) bzw. Xe(OR)2 (R:COCF3); dabei ist auch die intermediäre Bildung von FXeOCOCF3 nachweisbar. In einer Lösung von Xef2 und BF3 · O(CH3)2 in CD3CN wird das Vorliegen von [FXe · NCCD3]+ beobachtet. Die Synthesen von FXeOR (R: SO2CF3, SO2C4F9) sowie Xe(OR)2 (R:COCF3,COC2F5) gelingen ebenfalls durch die Umsetzungen von XeF2 mit den entsprechenden Alkalimetallsulfonaten bzw. -carboxylaten in Gegenwart von BF3 · O(CH3)2. Anhand der129Xe-NMR Spektren werden die Bildungsmechanismen und die Bindungsverhältnisse dieser teilweise neuen Xenonderivate diskutiert.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/zaac.19926070108

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Synthesen und Eigenschaften neuer Tris(fluorphenyl)antimon- und -bismut-Verbindungen. Kristallstruktur von Tris(2,6-difluorphenyl)bismutFrau Professor Marianne Baudler zum 75. Geburtstag gewidmet (1996)

Lewe, T. ; Naumann, D. ; Nowicki, G. ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für anorganische Chemie 622 (1996), S. 2009-2015

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ISSN: 0044-2313

Keywords: Tris(fluorophenyl)antimony and -bismuth compounds ; bismuth tris(2,6-difluorobenzoate) ; preparations ; crystal structure of tris(2,6-difluorophenyl)bismuth ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Syntheses and Properties of Some New Tris(fluorophenyl)antimony and -bismuth Compounds. Crystal Structure of Tris(2,6-difluorophenyl)bismuth(2,6-F2C6H3)3Bi, (2,4,6-F3C6H2)3Bi, and (2,6-F2C6H3)3Sb are prepared via Grignard reactions with BiBr3 and SbBr3, respectively. The syntheses and properties of the new compounds and the crystal structure of (2,6-F2C6H3)3Bi are described. From the reaction of BiBr3 with Ag(OCOC6H3F2) the bismuth benzoate Bi(OCOC6H3F2)3 is formed in 83% yield. Attempts to prepare (2,6-F2C6H3)3Bi by decarboxylation of the bismuth benzoate failed.

Notes: (2,6-F2C6H3)3Bi, (2,4,6-F3C6H2)3Bi und (2,6-F2C6H3)3Sb werden durch Grignard-Reaktionen mit BiBr3 bzw. SbBr3 dargestellt. Die Synthesebedingungen und die Eigenschaften der neuen Verbindungen sowie die Kristallstruktur von (2,6-F2C6H3)3Bi werden beschrieben. Bi(OCOC6H3F2)3 entsteht in 83% Ausbeute aus BiBr3 und Ag(OCOC6H3F2); die präparative Darstellung von (2,6-F2C6H3)3Bi durch Decarboxylierung des Bismutbenzoats gelingt nicht.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/zaac.19966221202

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