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  • 1
    Electronic Resource
    Electronic Resource
    A BONBON 6-membered ring heterocycle (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. o943-o944 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: 2,5-Dimethyl-3,3,6,6-tetraphenyl-1,4-dioxa-2,5-diazonia-3,6-diboratacyclohexane, C26H28B2N2O2, occupies a crystallographic inversion centre, and contains a six-membered BONBON heterocyclic ring, with a chair conformation and dative B—N bonds of length 1.640 (1) Å.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801014866
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  • 2
    Electronic Resource
    Electronic Resource
    Chloral adduct of N-hydroxypiperidine (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. o1173-o1174 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, N-(2,2,2–trichloro-1-hydroxyethoxy)piperidine, C7H12Cl3NO2, contains a six-membered piperidine ring with a chair conformation. The triclinic unit cell contains two independent pairs of molecules, with the molecules in each pair linked about centres of symmetry by O—H...N hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801018864
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  • 3
    Electronic Resource
    Electronic Resource
    An OBONC five-membered heterocycle (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. o1120-o1122 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: 4-[(2–Hydroxy-1-naphthyl)methyl]-2,2,5-triphenyl-1,3-dioxa-4-azonia-2-boratacyclopent-4-ene ethanol solvate, C30H24BNO3·C2H6O, contains a five-membered O—B—O—N=C ring, which is nearly planar (slight B-envelope).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801018037
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  • 4
    Electronic Resource
    Electronic Resource
    Borchelate von Salicylaldoxim und Derivaten (1983)
    Springer
    Monatshefte für Chemie 114 (1983), S. 465-484 
    Details
    ISSN: 1434-4475
    Keywords: Boron chelates ; Salicylaldoxime boronates ; Salicylaldoxime ; O-alkyloxime and O-acyloxime ; 2-Aminobenzaldoxim
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Formation and structure of boron chelates of salicylaldoxime are studied with O-alkyloximes and O-acyloximes of salicylaldehyde. The six-membered ring chelates thus obtained are synthesized also by alkylation resp. acylation of the preformed salicylaldoxime boron chelates. Thermolysis of the difluoroboron or diphenylboron chelates gives fluoroboronic resp. phenylboronic acid derivatives of salicylaldoxime that are isolated as dimeric compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00798445
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Kenntnis unsymmetrischer Aminale (1967)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 100 (1967), S. 2515-2517 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es werden einige unsymmetrische Aminale beschrieben, bei denen eine Aminkomponente durch Cyclohexyl-oder Isopropylgruppen sterisch behindert ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19671000808
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  • 6
    Electronic Resource
    Electronic Resource
    Notiz über die Hydroxylaminolyse von Styroloxid (1969)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 102 (1969), S. 1776-1777 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19691020550
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  • 7
    Electronic Resource
    Electronic Resource
    Hydroxylamin-Derivate, XXXVII. Hydroxylamine in der Vierkomponenten-Kondensation nach Ugi (1969)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 102 (1969), S. 2536-2546 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Hydroxylamin und seine N- und/oder O-Alkylderivate lassen sich im sauren wäßrig-alkoholischen Medium nach dem Syntheseprinzip der Vierkomponenten-Kondensation (Ugi-Reaktion) mit Aldehyden und Isocyaniden zu α-Hydroxylamino-carbonsäureamiden (4, 6, 8) (bzw. mit N-Isocyan-dialkylaminen zu α-Hydroxylamino-carbonsäurehydraziden 13) umsetzen. Aus Hydroxylaminen mit freier H2N-Gruppe erhält man in bestimmten Fällen fast ausschließlich Produkte einer „doppelten“ Ugi-Reaktion (9, 14).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19691020807
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  • 8
    Electronic Resource
    Electronic Resource
    Ring-Ketten-Isomerie bei N-(2-Hydroxyalkyl)nitronen, I Substituierte Benzaldehyd-nitrone (1977)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 2067-2089 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ring-Chain Isomerism of N-(2-Hydroxyalkyl)nitrones, I. Nitrones of Substituted BenzaldehydesThe ring-chain transformation of N-(2-hydroxyalkyl)nitrones 9, obtained from substituted benzaldehydes, is studied by reactions forming the B,N-betaine type boron chelates 16 from the open-chain nitrone form, the acyl derivatives 21 and 23 from both isomers, and the oxidation products from the cyclic N-hydroxyoxazolidine form 10.
    Notes: Die Ring-Ketten-Umlagerung von N-(2-Hydroxyalkyl)nitronen 9, die man aus substituierten Benzaldehyden erhält, wird mit Hilfe von Reaktionen untersucht, bei denen die B,N-Betain-Borchelate 16 aus der offenkettigen Nitron-Form, die Acylderivate 21 und 23 von beiden Isomeren und die Oxidationsprodukte der cyclischen N-Hydroxyoxazolidin-Form 10 gebildet werden.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19771100605
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  • 9
    Electronic Resource
    Electronic Resource
    Borchelate von N-substituierten Hydroxamsäuren (1983)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 2616-2629 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Boron Chelates of N-Substituted Hydroxamic AcidsBoron chelates 2 - 6 are synthesized from N-alkyl- or N-arylhydroxamic acids 1 and various boron compounds that are capable of being chelated by bidentate ligands. The spectroscopic data correspond to the cyclic B,N-betaine structure of 2 - 6 and reflect the Lewis acidity of the chelated borenium ions as well as the extent of electron delocalization in the hydroxamate ligands.
    Notes: Es werden Borchelate 2 - 6 aus N-Alkyl- bzw. N-Arylhydroxamsäuren 1 und verschiedenen Borverbindungen, die für eine Chelatbildung mit zweizähnigen Liganden geeignet sind, dargestellt. Die spektroskopischen Daten stehen im Einklang mit der cyclischen B,N-Betainstruktur von 2 - 6 und reflektieren sowohl die Lewis-Acidität der chelatisierten Borenium-Ionen als auch das Ausmaß der Elektronendelokalisierung in den Hydroxamat-Liganden.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19831160718
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  • 10
    Electronic Resource
    Electronic Resource
    Hydroxylamin-Derivate, XXX. Zur Kenntnis der N.N′-Dihydroxy-aminale (1966)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 99 (1966), S. 2686-2688 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N-Alkyl-hydroxylamine geben mit der halbmolaren Menge Formaldehyd Verbindungen, deren NMR-Spektren ihre Struktur als N.N′-Dihydroxy-aminale (1) sicherstellen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19660990839
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