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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 3273-3280 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Halogen Epoxides, 4. Synthesis1) Stability and Reactions of 2-Chloro-2-(1-chloroalkyl)oxiranes with AgBF42)Reactions of 3-chloroperbenzoic acid with 2,3-dichloro-1-butene (1a), 2,3-dichloro-3-methyl-1-buten (1b) (Z)- and (E)-1,2-dichloro-2-butene (1c,d) and with 1,2-dichloro-3-methyl-2-butene (1e) afforded the corresponding epoxides (2a - e). They rearranged slowly at room temperature and fast at elevated temperatures to form the corresponding isomeric α,α′-dichloroketones (3a,b). Reactions of the epoxides with AgBF4 produced α-chloro-α′ -fluoroketones.
    Notes: Umsetzungen von 3-Chlorperbenzoesäure mit 2,3-Dichlor-1-buten (1a), 2,3-Dichlor-3-methyl-1-buten (1b), (Z)- und (E)-1,2-Dichlor-2-buten (1c,d) sowie 1,2-Dichlor-3-methyl-2-buten (1e) ergaben die entsprechenden Epoxide (2a-e). Diese lagerten sich bei Raumtemperatur langsam, bei erhöhter Temperatur rasch um in die isomeren α, α′-Dichlorketone (3a bzw. b). Durch Umsetzung mit AgBF4 wurden aus den Epoxiden α-Chlor-α′-fluorketone erhalten.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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