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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 46 (1981), S. 5119-5124 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Ageing and society 3 (1983), S. 23-42 
    ISSN: 0144-686X
    Source: Cambridge Journals Digital Archives
    Topics: Medicine , Sociology
    Notes: The analysis of modern-age stratification systems must be based on the social organisation of work. This requires a theoretical approach that takes into account the structure of economic production, but also the fact that work is a meaningful activity of human beings within their life-world. The task therefore consists of integrating ‘materialist’ and ‘interpretive’ approaches to social reality. This integration is attempted in an examination of the special problems encountered by workers in the second half of their work life, as created by the ‘construction of ageing’ in the industrial firm. Existing approaches drawn from industrial sociology, stress structural features of the production process, whilst labelling theory stresses culturally induced age labels. Both are one-sided. A more comprehensive approach has to conceptualise the industrial firm as an actor with strategies based on economic rationality and as a life-world constituted by what is taken for granted by its members. The final section applies this framework to an empirical case study.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2234
    Keywords: Optical activity ; Chirality functions ; Phosphanes and phos-phinoxides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die molaren Drehungen von 7 Horner-Phosphanen und 16 Phosphinoxiden werden als experimentelle Basis für einen Test approximativer Chiralitätsfunktionen verwendet. Unter Zugrundelegung der Gerüstsymmetrie C3v für diese Verbindungsklasse stellen Zweiligandenfunktionen eine gute Näherung dar; eine Approximation unter Verwendung ligandenspezifischer Zahlen führt nur bei einigen Beispielen zum Erfolg.
    Notes: Abstract Seven optically active phosphanes and sixteen phosphin-oxides are used to test approximative chirality functions experimentally. Based onC 3v -symmetry of the molecular skeleton two-ligand-functions yield a good approximation for the experimental data. Ligand-specific parameters can only be gained from a few compounds.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 2328-2336 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Asymmetric Synthesis of 2-Organo-1,3,2-oxazaphospholidinesAchiral organophosphonous diamides RP(NMe2)2 react with chiral amino alcohols such as L-ephedrine and L-prolinol to form methyl- and phenyl-substituted mono- (2, 3) and bicyclic 1,3,2-oxazaphospholidines (6 - 8) in good yields. Organophosphonous dichlorides allow the synthesis of oxazaphospholidines only for R = tert-butyl (4, 5). The diastereomeric excess of the ephedrine and prolinol derivatives ranges from 80% (R = methyl) to 95% d.e. (R = tert-butyl). The bis-1,3,2-oxazaphospholidine 8, made from two mols of prolinol and one mol of 1,2-ethanediylbis[bis(dimethylamino)phosphane], is virtually diastereomerically pure according to the NMR spectrum. Analysis of the 13C-31P and 1H-31P coupling constants affords the structural assignment of the ephedrine derivatives as (2S,4S,5R) and the prolinol derivatives as (2R,5S).
    Notes: Durch Umsetzung von achiralen Phosphonigsäurediamiden RP(NMe2)2 mit chiralen Aminoalkoholen wie L-Ephedrin und L-Prolinol werden die entsprechenden methyl- und phenylsubstituierten mono- (2, 3) bzw. bicyclischen 1,3,2-Oxazaphospholidine (6 - 8) in guten Ausbeuten erhalten. Dagegen lassen sich Oxazaphospholidine unter Verwendung von Phosphonigsäuredichloriden nur für R = tert-Butyl (4, 5) herstellen. Die Diastereomerenreinheit der Ephedrin-und der Prolinol-Derivate beträgt zwischen 80% für R = Methyl und 95% d.e. für R = tert-Butyl. Für das Bis-1,3,2-oxazaphospholidin 8 aus 2 Molekülen Prolinol und 1 Molekül 1,2-Ethandiylbis-[bis(dimethylamino)phosphan] läßt sich NMR-spektroskopisch kein weiteres Diastereomeres mehr nachweisen. Durch Analyse der 13C-31P- und 1H-31P-Kopplungskonstanten wird den Ephedrin-Derivaten die (2S,4S,5R)- und den Prolinol-Derivaten die (2R,5S)-Konfiguration zugeordnet.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 3293-3300 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 2-Vinylphosphiranes: Synthesis and RearrangementsA straight-forward route to vinyl substituted phosphiranes is described in which organodichlorophosphanes with bulky groups such as tert-butyl (1), cyclohexyl (2), and menthyl (3) are reacted with magnesium-butadiene. The yields range from 36 to 58%. The structural assignement of the major isomer formed as cis follows unambigously from a study of the 13C, 31P NMR and 1H, 31P NMR coupling constants; however, the phenyl derivative, which is obtained only in 7% yield, is the trans-isomer. Diisobutylaluminium hydride adds smoothly to 1 to give (after hydrolysis) 1-tert-butyl-2-ethylphosphirane (5). Phosphirane 1 isomerizes photochemically and in the presence of Ni0 or Pd0 complexes catalytically to give the corresponding phospholene 6; similar behaviour is observed for the other phosphiranes 2, 3 and 4. Reaction of dichloro(diethylamino)-phosphane with magnesium-butadiene gives phospholene 10 directly.
    Notes: Aus Organodichlorphosphanen mit sperrigen Resten am Phosphoratom wie tert-Butyl, Cyclohexyl sowie Menthyl und Magnesium-Butadien erhält man die 2-Vinylphosphirane 1, 2 und 3 mit 36-58% Ausbeute, das entsprechende 1-Phenylderivat nur zu 7%. Aufgrund der 13C, 31P-NMR-bzw. der 1H, 31P-NMR-Kopplungskonstanten werden die bei dieser Reaktion überwiegend gebildeten Diastereomeren als cis-Isomere identifiziert, das Phenylderivat 4 dagegen als trans-Isomeres. Durch Anlagerung von Diisobutylaluminiumhydrid und anschließende Hydrolyse erhält man aus 1 1-tert-Butyl-2-ethylphosphiran (5). Photochemisch sowie durch Ni0- oder Pd0-Komplexe katalysiert isomerisieren die Verbindungen zu den Phospholenen 6-9. Aus Dichlor(dietylamino)phosphan erhält man unter gleichen Bedingungen direkt das Aminophospholen 10.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 94 (1982), S. 932-933 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 94 (1982), S. 298-298 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: No Abstract.Das vollständige Manuskript dieser Zuschrift erscheint in: Angew. Chem. Suppl. 1982, 739-743
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 21 (1982), S. 739-743 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 21 (1982), S. 292-293 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: No Abstract.The complete manuscript of this communication appears in: Angew. Chem. Suppl. 1982, 739. DOI:10.1002/anie.198207390
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 21 (1982), S. 919-920 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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