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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 1767-1785 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tricyclo[4.1.0.02,7]hept-1(7)-ene as a Reactive Intermediate: Diels-Alder Trapping Reactions and Proof of ExistenceThe reaction of bulky lithium amides or potassium tert-butoxide with 1-chlorotricycloheptane 3a, generated tricyclo[4.1.0.02,7]hept-1(7)-ene (7) as a short-lived intermediate which could be trapped with reactive 1,3-dienes like anthracenes, furans and spiro[2.4]hepta-4,6-diene forming [4.1.1]- and [3.1.1.]propellanes. The existence of 7 as a free intermediate has been established by competition experiments.
    Notes: Die Einwirkung von sperrigen Lithiumamiden oder Kalium-tert-butylat auf das 1-Chlortricyclo-heptan 3a, erzeugte Tricyclo[4.1.0.0.2,7]hept-1(7)-en (7) als kurzlebige Zwischenstufe, die sich mit reaktiven 1,3-Dienen wie Anthracenen, Furanen und Spiro[2.4]hepta-4,6-dien unter Bildung von [4.1.1]- und [3.1.1]Propellanen abfangen ließ. Durch Konkurrenzexperimente wurde nachgewiesen, daß 7 als freies Teilchen auftritt.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
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