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  • 1
    Electronic Resource
    Electronic Resource
    Zur Reaktion von Fluorsilanen mit lithiierten Aminen (1977)
    Springer
    Monatshefte für Chemie 108 (1977), S. 1099-1104 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of fluorosilanes with lithium salts of bulky amines like tetramethyl-piperidine and di-tert. butylamine leads to stable aminofluorosilanes of the type R-SiF2-NR′R″ [R=F, C(CH3)3, C6H5, C6H4N(CH3)2]. Lithium salts of silylamines react analogously: R2Si(NR′-SiF2R″)2 (R=R′= =CH3, R″=C6H5). An eight membered Si−N-ring is obtained in the reaction of a disubstituted silylaminofluorosilane with the dilithium salt of a silylamine. The mass-,1H-, and19F-NMR spectra of the above mentioned compounds are reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897691
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  • 2
    Electronic Resource
    Electronic Resource
    Reaktionen von Lithio-aminofluorsilanen mit kovalenten Elementhalogeniden (1981)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 527-535 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Lithio-aminofluorosilanes with Covalent Element HalidesHalides of boron, germanium, phosphorus, and arsenic react with lithio-aminofluorosilanes (1a-e) with elimination of lithium halide and substitution (2a, b, 3c, 4b, 5b, 5d, 6b). Depending on the bulkiness of the substituents and the reaction conditions, halosilanes are also cleaved off and four-membered rings (8d, 10b, 11b, 13b, 14b) are formed. The reaction of 1e with (Me3Si)2NPF2 leads to the formation of the aminoiminophosphane 9e. A 1,3-migration of a silyl group from the alkyl- to the arylamino-nitrogen is observed in this reaction. 5d reacts with lithiated (2,4,6-trimethylphenyl)(trimethylsilyl)amine to give 15d and LiF. The aminoiminophosphane 16d is obtained by thermal difluorosilane elimination from 15d. An aminoiminodifluorophosphane (12b) is formed in the reaction of 1b with PF5, isobutene, tert-butyldifluorophenylsilane, and LiF being cleaved off.
    Notes: Halogenverbindungen der Elemente Bor, Germanium, Phosphor und arsen reagieren mit Lithioaminofluorsilanen (1a-c) unter Lithiumhalogenid-Abspaltung und Substitution (→2a, b, 3c, 4b, 5b, 5d, 6b). In Abhängigkeit von der Substituentengröße und den Reaktionsbedingungen wird außer Lithiumhalogenid Halogensilan abgespalten, wobei viergliedrige Ringe (8d, 10b, 11b, 13b, 14b) entstehen. Bei der Reaktion von 1e mit (Me3Si)2NPF2 wird das Aminoiminophosphan 9e unter zusätzlicher 1,3-Silylgruppenwanderung vom Alkyl- zum Arylaminstickstoff gebildet. 5d reagiert mit lithiiertem (2,4,6-Trimethylphenyl)(trimethylsilyl)amin zu 15d und LiF. Das Aminoiminophosphan 16d wird durch thermische Difluorsilan-Abspaltung aus 15d erhalten. Ein Aminoiminodifluorphosphan (12b) entsteht bei der Reaktion von 1b mit PF5 unter Abspaltung von Isobuten, tert-Butyldifluorphenylsilan und LiF.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19811140214
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  • 3
    Electronic Resource
    Electronic Resource
    Addition von Silicenium-Yliden an konjugierte Doppelbindungen (1980)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1980 (1980), S. 1978-1980 
    Details
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Addition of Silicenium Ylides to Conjugated Double BondsIn the reaction of 2-methyl-2-propenal with lithioaminofluorosilanes LiF is eliminated and [2 + 4]-cycloaddition to the intermediate sila imine is observed.
    Notes: Bei der Reaktion von 2-Methyl-2-propenal mit Lithio-aminofluorsilanen wird unter LiF-Abspaltung eine [2 + 4]-Cycloaddition mit dem intermediären Silaimin beobachtet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.198019801208
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  • 4
    Electronic Resource
    Electronic Resource
    Cyclisierung neuer Trimethylsilylalkylaminohalogensilane (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 429 (1977), S. 63-68 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cyclisation of New TrimethylsilylalkylaminohalosilanesCompounds of the composition RSiCl2NR′SiMe3 (R = Cl, CH3, C2H5, C6H5; R′ = CH3, C2H5, C(CH3)3) are obtained by the reaction of silicon halides with the lithium salts of silylamines. Under suitable experimental conditions the reaction leads to the formation of the corresponding Si—N four- and six-membered ring systems (RSiHalNR′)n (Hal = F, Cl; n = 2 or 3) under elimination of trimethylhalosilane. The i.r., mass, 35Cl-n.q.r., 1H and 19F-n.m.r. spectra of these compounds are reported.
    Notes: Bei der Umsetzung von Halogensilanen mit lithierten Silylaminen sind Verbindungen der Zusammensetzung RSiCl2NR′SiMe3 (R = Cl, CH3, C2H5, C6H5; R′ = CH3, C2H5, C(CH3)3) darstellbar. Durch geeignete Versuchsbedingungen führt die Reaktion unter Abspaltung von Trimethylhalogensilan zur Bildung von entsprechenden Si—N-Vier- bzw. Sechsringsystemen des Typs (RSiHalNR′)n (Hal = F, Cl; n = 2 oder 3). Die IR-, Massen-, 35Cl-NQR- und 1H- bzw. 19F-NMR-Spektren der isolierten Verbindungen werden mitgeteilt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774290108
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