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  • Articles  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 2811-2821 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tetrafluoro-1,2-ethanedisulfenyl Dichloride - a Precursor for new Sulfur-Nitrogen-Carbon Heterocycles1,3,2-Dithiazolidines (3a-c) are obtained by reaction of the title compound CISCF2CF2SCI 1 with disilylated amines (Me3Si)2NR (R=Me, Ph, SiMe3). Reaction with (Me3-SiNR)2SO2 (R=Me, SiMe3) yields 1,3,5,2,4-trithiadiazepanes 4a, b, whereas N,N′-disilylated urea leads to the dithiadiazepanon 5. CISCF2CF2SSCI and SO2[N(SiMe3)2]2 react to yield the eight-membered tetrahiadiazocane 6. Using the dilution principle, with disilylated piperazine 7 in a molar ratio of 1:1 the sixteen-membered ring 9 is formed, which contains two piperazine units within the ring skeleton. The crystal structure of 1,3,5,2,4-trithiadiazepane-tetraphenylphosphonium chloride 10 is reported. 4b reacts with 1 to yield 11 in which a ten-membered ring is bridged by an SO2 group. By changing the reaction conditions a product of twice the molecular weight is formed, for which a tricyclic system with a central fourteen-membered ring 13 is proposed.
    Notes: Die Titelverbindung CISCF2CF2SCI 1 reagiert mit disilylierten Aminen (Me3Si)2NR (R=Me, Ph, SiMe3) glatt zu 1,3,2-Dithiazolidinen (3a-c). Bei der Umsetzung mit (Me3SiNR)2SO2 (R=Me, SiMe3) werden die 1,3,5,2,4-Trithiadiazepane 4a, b erhalten; mit N,N′-disilyliertem Harnstoff bildet sich das 1,5,2,4-Dithiadiazepanon 5. CISCF2CF2SSCI und SO2[N(SiMe3)2]2 reagieren zum achtgliedrigen 1,2,4,6,3,5-Tetrathiadiazocan 6. Durch Anwendung des Verdünnungsprinzips wird mit disilyliertem Piperazin 7 im Molverhältnis 1:1 der sechzehngliedrige Ring 9 synthetisiert, welcher zwei Piperazineinheiten im Ringgerüst enthält. Von 1,3,5,2,4-Trithiadiazepan-Tetraphenylphosphoniumchlorid 10 wird die Röntgenstrukturanalyse mitgeteilt. 4b reagiert mit 1 zu 11; hier liegt ein zehngliedriger Ring vor, der durch eine SO2-Gruppe überbrückt ist. Bei veränderter Reaktionsführung erhält man ein Produkt der doppelten Molekülmasse, dem eine tricyclische Struktur zugeschrieben wird, die einen zentralen vierzehngliedrigen Ring enthält (13).
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1980-1981 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Chain Lengthening of Tetrafluoro-1,2-ethanedisulfenyl Dichloride by the Reaction with Hydrogen PeroxideThe reaction of the little compound ClSCF2CF2SCl (1) with aqueous H2O2 results in the formation of ClS2CF2CF2SSCF2CF2SO2Cl(2), which is characterized on the basis of 19F NMR, mass, IR, and Raman spectroscopy.
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  • 3
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structures of Bicyclic Phosphoranes  -  Products Resulting from the Reaction of Hexafluoroacetone with Mercury SaltsHg(SCN)2 reacts with hexafluoroacetone (HFA) to give the cycloaddition product 1. Reaction of 1 with CF3SCl, ClSC2F4SCl, and Br2 leads to elimination of mercury with formation of the disulfanes 2,3, and 4, respectively. 1 reacts with Ph2PCl to yield the bicyclic phosphorane 5. The reaction of Hg(CN)2 with HFA and Ph2PCl leads to 7. The bicyclic fragment present in 7 is also found in 8, which is formed from PhP(CN)2 and HFA. The X-ray structure analysis of 5, 7, and 8 are reported.
    Notes: Aus Hg(SCN)2 wird mit Hexafluoraceton (HFA) das Cycloadditionsprodukt 1 erhalten. Dieses reagiert mit CF3SCl, ClSC2F4SCl und Br2 unter Eliminierung des Quecksilbers zu den Disulfanen 2,3 und 4. Aus 1 und Ph2PCl entsteht das bicyclische Phosphoran 5. Hg(CN)2, HFA und Ph2PCl reagieren zu 7. Die gleichen bicyclischen Strukturelemente, wie sie in 7 vorliegen, werden auch in 8, dem Reaktionsprodukt aus PhP(CN)2 und HFA, gefunden. Die Röntgenstrukturanalysen von 5, 7 und 8 werden mitgeteilt.
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