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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 2519-2529 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Formation of PhenylthiirenePhotolysis and thermolysis of 4- and 5-phenyl-[13C]-1,2,3-thiadiazole (4a and 4a′) furnish the phenylthioacetic acid O-esters 19 and 21, respectively, and the 1,3-dithioles 22. A product analysis by 13C NMR spectroscopy shows on the basis of a kinetic scheme that starting with 4a′ the intermediate 2-phenyl-[213C]thiirene (1a) is formed photochemically to a considerable extent and thermally nearly up to 100%. In contrast no thiirene intermediate can be found in the decomposition of 4a.
    Notes: Die Photolyse und Thermolyse von 4- und 5-Phenyl-[13C]-1,2,3-thiadiazol (4a und 4a′) liefern die Phenylthioessigsäure-O-ester 19 bzw. 21 und die 1,3-Dithiole 22. Die 13C-NMR-Analyse der Produkte zeigt an Hand eines kinetischen Schemas, daß ausgehend von 4a′ die 2-Phenyl-[2-13C]thiiren-Zwischenstufe 1a photochemisch deutlich, thermisch zu fast 100% durchlaufen wird, nicht jedoch bei der Zersetzung von 4a.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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