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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 1460-1467 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Mechanism of the „Criss-Cross“ Cycloaddition2-[3,3-Bis(trifluoromethyl)-1-pyrazolin-1-io]-1,1,1,3,3,3-hexafluoro-2-propanides (3) are the stable intermediates of the „criss-cross“ cycloaddition reaction of terminal olefins to hexafluoroacetone azine (1). The isolation of the 1:1 adducts makes the mixed „criss-cross“ cycloaddition reaction possible. The azomethine imine intermediate readily explains the reaction of olefins of the type R1CH=CHR2 with 1 to yield 3-pyrazolines (10).
    Notes: 2-[3,3-Bis(trifluormethyl)-1-pyrazolin-1-io]-1,1,1,3,3,3-hexafluor-2-propanide (3) sind die stabile 1:1-Zwischenstufe der „criss-cross“-Cycloaddition von terminalen Olefinen an Hexafluoracetonazin (1). Die Isolierung der 1:1-Addukte (3) macht die gemischte „criss-cross“-Cycloaddition möglich. Die Azomethinimin-Zwischenstufe erklärt auf einfache Weise die Reaktion von Olefinen des Typs R1CH=CHR2 mit 1 zu 3-Pyrazolinen (10).
    Type of Medium: Electronic Resource
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