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  • Wiley-Blackwell  (2)
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  • Wiley-Blackwell  (2)
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  • 1
    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.
    Additional Material: 1 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 119 (1986), S. 771-776 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tautomerism of Covalent Cyanides - Reactions of the Isonitrile Form with HexafluoroacetoneFrom Me3SiCN and hexafluoroacetone (HFA) the compound Me3SiOC(CF3)2CN (1) as well as, depending on the reaction conditions, the 1,3-dioxolanes Me3SiNC(HFA)2 (2) or Me3SiOC(CF3)2NC(HFA)2 (3) are obtained. Dioxolane 2 reacts with ClF to form the dioxolanes 4, 5, with SeOCl2 to give the bis(dioxolanylideneamino)selenium dichloride Cl2Se-[NC(HFA)2]2 (6), with BBr3 to yield the (dioxolanylideneamino)boranes Br3-nB-[NC(HFA)2]n (7, 8), and with Ph2PCl to form the bicyclus 9.
    Notes: Aus Me3SiCN und Hexafluoraceton (HFA) werden die Verbindungen Me3SiOC(CF3)2CN (1) sowie, je nach Reaktionsbedingungen, die 1,3-Dioxolane Me3SiNC(HFA)2 (2) oder Me3SiOC(CF3)2NC(HFA)2 (3) erhalten. Das Dioxolan 2 ergibt mit ClF die Dioxolane 4, 5, mit SeOCl2 das Bis(dioxolanylidenamino)selendichlorid Cl2Se[NC(HFA)2]2 (6), mit BBr3 die (Dioxolanylidenamino)borane Br3-nB[NC(HFA)2]n (7, 8) und mit Ph2PCl den Bicyclus 9.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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