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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 2333-2341 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxidation of Diborane(4) Molecules by ChloraminesThe boron-boron bonds in the diborane(4) molecules (Me2N)2B—Clb(NMe2)2 (1), (Me2N)ClB—BCl(NMe2) (5) and Cl2B—BCl2 (8) as in B4Cl4 are cleaved by the chloramines Me2NCl (2), MeNCl2 and EtNCl2 (9). As oxidation products BCl3 or the corresponding aminoborane and diborylamines can be isolated. The interaction of 8 and 2 leads to the formation of Me2NH · BCl3 as additional product. - Elementary chlorine does not only cleave the B—B but also the B—N bond in 1, giving Me2NCl as one of the reaction products. - The properties of the N-ethylbis(dichloroboryl)amine (11) are discussed.
    Notes: Die Bor-Bor-Bindungen in den Diboran(4)-Molekülen (Me2N)2B—B(NMe2)2 (1), (Me2N)ClB—BCl(NMe2) (5) und Cl2B—BCl2 (8) wie auch in B4Cl4 werden durch die Chloramine Me2NCl (2), MeNCl2 und EtNCl2 (9) gespalten. Als Oxidationsprodukte lassen sich BCl3 oder das entsprechende Aminoboran und Diborylamine isolieren. Die Umsetzung von 8 und 2 führt zusätzlich zur Bildung von Me2NH · BCl3. - Elementares Chlor spaltet in 1 nicht nur die B—B-sondern auch die B—N-Bindung; Me2NCl ist eines der Reaktionsprodukte. - Die Eigenschaften des N-Ethylbis(dichlorboryl)amins (11) werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2108-2112 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Addition of Diborontetrahalides to Unsaturated HydrocarbonsB2Cl4 and B2F4 add on the C = C-bond of methylenecyclopropane or vinylcyclopropane forming the diboryl compounds 3 and 5 respectively, C—C-bonds of the cyclopropane rings are not cleaved even using an excess of B2Cl4. The properties of the new compounds and their spectroscopic data are listed.
    Notes: B2Cl4 und B2F4 addieren sich an die C = C-Bindung von Methylencyclopropan bzw. Vinylcyclopropan unter Bildung der Diborylverbindungen 3 bzw. 5. C—C-Bindungen der Cyclopropanringe werden auch bei einem Überschuß von B2Cl4 nicht gespalten. Die Eigenschaften der neuen Verbindungen und ihre spektroskopischen Daten sind aufgeführt.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 513-518 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Reaction of Boron-Nitrogen Compounds with Excited Carbon Atoms Generated in an ArcThe interaction of carbon vapor from a carbon are with dimethylaminoborane, (CH3)2N—BH2 (1), yields as the main reaction product (dimethylamino)methylborane, (CH3)2 N—BH—CH3 (3), which combines with the starting material to form the four-membered ring compound 5. Other compounds formed in this reaction are (dimethylamino)dimethylborane, (CH3)2N—B(CH3)2 (2), and dimethylaminborane, (CH3)2NH—BH3, as well as the previously unknown compound (CH3)2N—BH—O—BH—N(CH3)2 (6), which could be isolated.
    Notes: Die Reaktion von im Lichtbogen erzeugten Kohlenstoffatomen mit Dimethylaminoboran, (CH3)2N—BH2 (1), ergibt als Hauptreaktionsprodukt das Dimethylamino-methylboran, (CH3)2N—BH—CH3 (3), das sich mit dem Ausgangsmaterial zur Vierringverbindung 5 umsetzt. Weiterhin findet man Dimethylamino-dimethylboran, (CH3)2N—B(CH3)2 (2) und Dimethylamin-boran, (CH3)2NH—BH3. Schließlich kann die bisher noch nicht bekannte Verbindung (CH3)2N—BH—O—BH—N(CH3)2 (6) isoliert werden.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1083-1087 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Properties of DiborolanesThe five-membered ring molecules (X = S: 3a and X = NMe: 3b) are formed in good yields by the interaction of Cl2B—CH2CH2—BCl2 with the silyl compounds (Me3Si)2X. Substitution reactions in 3a and 3b for example with SbF3 or Me4Sn are accompanied by a ring cleavage. However, derivatives of the heterocycles, as the methyl compounds 4a and 4b, can be prepared from the partially methylated compound MeClB—CH2CH2—BMeCl (5) and (Me3Si)2X.
    Notes: Die Fünfringmoleküle (X = S: 3a und X = NMe: 3b) entstehen in guten Ausbeuten aus Cl2B—CH2CH2—BCl 2 und den Silylverbindungen (Me3Si)2X. Substitutionsreaktionen an 3a und 3b z. B. mit SbF3 oder Me4Sn führen gleichzeitig zu Ringspaltungen. Derivate der Heterocyclen, Wie die Methylverbindungen 4a und 4b, lassen sich jedoch durch Umsetzung der partiell methylierten Verbindung MeClB—CH2CH2-BMeCl (5) mit (Me3Si)2X darstellen.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 3352-3356 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Properties of Diboron HeterocyclesStarting from the bifunctional molecules [(CH3)3Si]2X (X = S, NCH3 or NCH3 — NCH3; 2a - c) and the diboryl compounds Cl2B — CR = CR — BCl2 (R = H 1a and R = CH3 1b) and Cl2B — CH2-CH2 — BCl2, respectively, the ring compounds 3a - c and 4 were prepared. The properties of the five- and six-membered ring systems with 4 π- and 6 π-electrons are compared.
    Notes: Von den bifunktionellen Molekülen [(CH3)3Si]2X (X = S, NCH3 bzw. NCH3 — NCH3; 2a - c) und den Diborylverbindungen Cl2B — CR = CR — BCl2 (R = H 1a und R = CH3 1b) bzw. Cl2B — CH2-CH2 — BCl2 ausgehend wurden die Ringverbindungen 3a - c und 4 hergestellt. Die Eigenschaften der fünf- und sechsgliedrigen Ringe mit 4 π- und 6 π-Elektronen werden verglichen.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1980 (1980), S. 1659-1664 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Chloroboranes with Bifunctional BasesReaction of trichloroborane with 2-(trimethylsilylamino)pyridine (1b) and 2-(trimethylsilyloxy)-pyridine (2b) yields the dimeric dichloro(2-pyridylamino)borane 4 and the dimeric dichloro-(2-pyridyloxy)borane 5, respectively. In a 1:2 molar ratio tetrachlorodiborane(4) and 2b react to form the bicyclus 6, while equimolar amounts react in a complex way.
    Notes: Aus Trichlorboran erhält man mit 2-(Trimethylsilylamino)pyridin (1b) und 2-(Trimethylsilyloxy)-pyridin (2b) das dimere Dichlor(2-pyridylamino)boran 4 bzw. das dimere Dichlor(2-pyridyloxy)-boran 5. Tetrachlordiboran(4) und 2b setzen sich bei einem Molverhältnis von 1:2 zum Bicyclus 6 um, während äquimolare Mengen unübersichtlich reagieren.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0009-2940
    Keywords: 1,2-Diarsa-closo-hexaborane(4) ; Perchlorinated arsaborane clusters ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Copyrolysis of B2Cl4 and AsCl3 at 330°C leads to the formation of closo-1,2-As2B4Cl4 (1) and further products the mass spectral evidence of which suggests that they are perchlorinated arsaboranes As2B5Cl5, As4B8Cl6, and As2B10Cl10. The pyrolysis temperature and the molar ratio of the reactants exert an essential influence on the type and distribution of the products. At temperatures above 400°C and higher B2Cl4/AsCl3 ratios the formation of As2B10Cl10 is preferred to that of smaller arsaboranes. A single-crystal X-ray study of 1 confirmed that, consistent with its 14-skeletal electron count, the arsaborane adopts a slightly distorted octahedral structure with the arsenic atoms in adjacent cis positions.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Experiments on the solvolysis of the —N=PCl3 group by water, formic acid, dimethylsulphoxide and chlorosulphuric acid are described.Water hydrolyzes all Cl atoms and cleaves the P—N bond. In the case of formic acid and, partially, dimethysulphoxide, intermediate stages of the P—Cl hydrolysis can be obtained. Chlorosulphuric acid giveds OPCl3 under P—N bond cleavage.
    Notes: Es werden Versuche zur Solvolyse der —N=PCl3-Gruppierung mit Wasser, Ameisensäure, Dimethylsulfoxid und Chlorsulfonsäure beschrieben.Mit Wasser werden alle Chloratome hydrolysiert und die P—N-Bindung gespalten. Mit Ameisensäure und teilweise auch Dimethylsulfoxid können Zwischenstufen bei der Hydrolyse der P—Cl-Bindungen erhalten werden. Chlorsulfonsäure spaltet die P—N-Bindung und setzt OPCl3 frei.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 372 (1970), S. 273-279 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The reaction of diphenyltrichlorophosphorane with amides leads to (C6H5)2P(Cl)=N-acyl compounds, whereas with amines salt-like compounds, [(C6H5)2P(Cl)—NHR]Cl, are formed.
    Notes: Die Reaktion von Diphenyltrichlorphosphoran mit Amiden führt zu (C6H5)2P(Cl)=N-Acylverbindungen, die sich zu den entsprechenden Säuren hydrolysieren lassen, während mit Aminen die salzartigen Verbindungen [(C6H5)2P(Cl)—NHR]Cl entstehen, die nur zum Teil in ein Phosphinimin (C6H5)2P(Cl)=NR übergehen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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