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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 1545-1550 
    ISSN: 0009-2940
    Keywords: [8 + 2] Cycloaddition ; Substituent effects ; Reactivity ; Regioselectivity ; FMO calculations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cycloaddition of Benzothiete of 4-Substituted StyrenesBy thermal ring opening benzothiete (1) generates an 8-π electron system 2, which forms the cycloadducts 4/5a-j with 4-substituted styrenes 3a-j. The enhancement of the reactivity by electrondonating as well as electron-withdrawing substituents and their influence on the regioselectivity are discussed by applying frontier orbital calculations.
    Notes: Durch thermische Ringöffnung entsteht aus Benzothiet (1) ein 8-π-Elektronensystem 2, das mit den 4-substituierten Styrolen 3a-j die Cycloaddukte 4/5a-j bildet. Die Erhöhung der Reaktivität durch elektronenspendende oder elektronenanziehende Reste und die Einflüsse auf die Regioselektivität werden an Hand von Grenzorbitalbetrachtungen diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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