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  • 1975-1979  (4)
  • General Chemistry  (4)
  • Analytical Chemistry and Spectroscopy
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  • 1
    Electronic Resource
    Electronic Resource
    D-Penicillamin - Herstellung und Eigenschaften (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 87 (1975), S. 372-378 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die unnatürliche Aminosäure D-Penicillamin, ursprünglich nur als Schlüsselsubstanz bei der Strukturaufklärung und Totalsynthese der Penicilline von Interesse, gewinnt zunehmend als Therapeutikum, insbesondere zur Langzeitbehandlung der Rheumatoiden Arthritis, an Bedeutung. D-Penicillamin, das früher ausschließlich halbsynthetisch durch Abbau von Penicillinen technisch zugänglich war, kann nach einem neuen Verfahren ausgehend von Isobutyraldehyd, Schwefel, Ammoniak und Cyanwasserstoff über das Racemat und dessen selektive Spaltung vollsynthetisch hergestellt werden. Aus dem biochemischen Verhalten von D-Penicillamin - Chelatbildung mit Schwermetall-Ionen, Spaltung von Disulfidbrücken und Kondensation mit Aldehydgruppen - lassen sich Beziehungen zu seiner therapeutischen Wirkung herleiten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19750871003
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Autoabgasreinigung mit multifunktionellen Katalysatoren (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 88 (1976), S. 657-663 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An multifunktionellen Katalysatoren können Kohlenmonoxid, Kohlenwasserstoffe und Stickstoffoxide gleichzeitig in unschädliche Stoffe umgewandelt werden. Die Katalysatoren, die aus Edelmetallen oder Nichtedelmetalloxiden auf inertem Material bestehen, lassen sich in monolithischer Form oder als Schüttgut anwenden. Im Vergleich zu anderen Möglichkeiten der Autoabgasreinigung zeichnet sich die Anwendung multifunktioneller Katalysatoren durch eine Treibstoffeinsparung aus.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19760882002
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    D-Penicillamine - Production and Properties (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 14 (1975), S. 330-336 
    Details
    ISSN: 0570-0833
    Keywords: d-Penicillamine ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The non-naturally occurring amino acid D-penicillamine, originally only of interest as a key substance in the structural elucidation and total synthesis of penicillins is gaining increasing importance as a therapeutic, particularly in the long-term treatment of rheumatoid arthritis. D-Penicillamine which previously was obtained semi-synthetically by degradation of penicillins can now be totally synthesized using a new process which starts from isobutyraldehyde, sulfur, ammonia, and hydrogen cyanide and yields the racemate which is then selectively resolved. The biochemical behavior of D-penicillamine - chelate formation with heavy metal ions, cleavage of disulfide bridges, and condensation with aldehyde groups - affords information related to its therapeutic activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.197503301
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Detoxification of Automotive Exhaust Gases with Multifunctional Catalysts (1976)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 15 (1976), S. 586-592 
    Details
    ISSN: 0570-0833
    Keywords: Environmental chemistry ; Automotive exhaust gases ; Exhaust gases ; Catalysis ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Carbon monoxide, hydrocarbons, and nitrogen oxides can be simultaneously transformed into inoffensive substances on multifunctional catalysts. Consisting of noble metals or base metal oxides deposited on an inert support, these catalysts can be used in monolithic form or as granular packings. Compared with other methods of automotive exhaust detoxification, multifunctional catalysts are distinguished by incurring fuel savings.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.197605861
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    Paper (German National Licenses)
    Fulltext
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