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  • 1
    Electronic Resource
    Electronic Resource
    Einführung von Sauerstoff-Funktionen in die α-Stellung von β-Diketonen, 2. Umfunktionalisierungen von 2-Acyloxy-3-sek.-amino-2-cyclohexen-1-onen (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 2324-2331 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Introduction of Oxygen Functions into the α-Position of β-Diketones, 2. Defunctionalisations of 2-Acyloxy-3-sec.-amino-2-cyclohexen-1-onesAlicyclic acyloxyenaminones 1 are hydrolized specifically either at the ester group to yield enaminolones 2, or at the enamino group to yield 2-acyloxy-1,-3-cyclohexanediones 4. The enaminolones 2 are useful intermediates with respect to the preparation of aci-reductones 5 and of 2-alkoxy 1,3-cyclohexandiones 6.
    Notes: Die alicyclischen Acyloxyenaminone 1lassen sich spezifisch an der Estergruppe zu den Enaminolonen 2 oder an der Enaminogruppe zu 2-Acyloxy-1,3-cyclohexandionen 4 hydrolysieren. Die Enaminolone 2 sind wertvolle Zwischenprodukte für die Herstellung der aci-Reduktone 5 und der 2-Alkoxy-1,3-cyclohexandione 6.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120639
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  • 2
    Electronic Resource
    Electronic Resource
    Keto-Enol-Tautomerie bei 3-(Arylthio)- und 3-(Arylsulfonyl)-isochroman-1,4-dionen (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2859-2869 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Keto-Enol Tautomerism of 3-(Arylthio)- and 3-(Arylsulfonyl)isochromane-1,4-dionesThe title compounds and a number of their derivatives are prepared. Whereas all investigated 3-(arylthio)isochromane-1,4-diones 3 are completely enolized their S,S-dioxides 7 show, depending on the solvent, keto-enol equilibria in which the keto species are dominating (IR, UV VIS, 1H, and 13C measurements). Some characteristic properties of these classes of compounds are discussed.
    Notes: Die Titelverbindungen und eine Reihe ihrer Derivate werden dargestellt. Während alle untersuchten 3-(Arylthio)isochroman-1,4-dione 3 vollständig enolisiert vorliegen, zeigen ihre S,S-Dioxide 7 in Abhängigkeit vom Lösungsmittel Keto-Enol-Gleichgewichte, in denen die Ketoformen dominieren (IR-, UV/VIS-, 1H- und 13C-Messungen). Einige charakteristische Eigenschaften dieser Substanzklassen werden diskutiert.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110812
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  • 3
    Electronic Resource
    Electronic Resource
    Einführung von Sauerstoff-Funktionen in die α-Stellung von β-Diketonen, 1. Acyloxylierungen von 3-sek.-Amino-2-cyclohexen-1-onen mit Diacylperoxiden (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 2314-2323 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Introduction of Oxygen Functions into the α-Position of β-Diketones, 1. Acyloxylation of 3-sec.-Amino-2-cyclohexen-1-ones by Means of Diacyl PeroxidesAlicyclic enaminones 3 are easily acyloxylated by diacyl peroxides 4. Optimal Conditions as well as mechanistic investigations are described.
    Notes: Die alicyclischen Enaminone 3 lassen sich mit Diacylperoxiden 4 leicht acyloxylieren. Optimale Reaktionsbedingungen sowie mechanistische Untersuchungen werden beschrieben.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120638
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  • 4
    Electronic Resource
    Electronic Resource
    Einführung von Sauerstoff-Funktionen in die α-Stellung von β-Diketonen, 51) Acyloxylierung von 3-prim.-Amino-2-cyclohexen-1-onen (1981)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 2019-2028 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Introduction of Oxygen Function into the α-Position of β-Diketones, 51) Acyloxylation of 3-prim.-Amino-2-cyclohexen-1-onesThe enaminone 1 reacts with diacyl peroxides 2 to yield monoacyloxylation products 4 and (acylamino)cyclohexadienolones 6 which may be regarded as reaction products of an acyl rearrangement of the non-isolable bis-acyloxylation products 5. Catalytic hydrogenation of benzyl esters 4e and 6e obtained by the described way leads immediately to the amino reductone 8.
    Notes: Das Enaminon 1 reagiert mit Diacylperoxiden 2 zu den Mono-acyloxylierungsprodukten 4 und den (Acylamino)cyclohexadienolonen 6, die als Folgeprodukte einer Acylumlagerung aus den nicht nachweisbaren Bis-acyloxylierungsprodukten 5 angesehen werden können. Katalytische Hydrierung der auf diese Weise einfach zugänglichen Benzylester 4e und 6e liefert unmittelbar das Aminoredukton 8.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19811140604
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  • 5
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    Magnetically Frustrated Double Perovskites: Synthesis, Structural Properties, and Magnetic Order of Sr2BOsO6 (B = Y, In, Sc) (2015)
    Wiley
    Details
    Publication Date: 2015-02-04
    Description: Double perovskites Sr 2 B OsO 6 ( B = Y, In, and Sc) were prepared from the respective binary metal oxides, and their structural, magnetic, and electronic properties were investigated. At room temperature all these compounds crystallize in the monoclinic space group P 2 1 / n . They contain magnetic osmium (Os 5+ , t 2g 3 ) ions and are antiferromagnetic insulators with Néel temperatures T N = 53 K, 26 K, and 92 K for B = Y, In, and Sc, respectively. Powder neutron diffraction studies on Sr 2 YOsO 6 and Sr 2 InOsO 6 showed that the crystal structures remain unchanged down to 3 K. The Y and In compounds feature a type I antiferromagnetic spin structure with ordered Os moments of 1.91 μ B and 1.77 μ B , respectively. The trend in T N does not simply follow the development of the lattice parameters, which suggests that d 0 compared to d 10 ions on the B site favor a somewhat different balance of exchange interactions in the frustrated Os 5+ fcc -like lattice.
    Print ISSN: 0044-2313
    Electronic ISSN: 1521-3749
    Topics: Chemistry and Pharmacology
    Published by Wiley
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