Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1980-1984  (2)
  • 1983  (2)
Material
Years
  • 1980-1984  (2)
Year
  • 1
    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
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    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
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...