Novel Zwitterionic Sulfides, Selenides and Tellurides
نویسندگان
چکیده
The zwitterionic compounds Im-E-Mel [9, E S (a), Se (b), Te (c), Im 2-{1,3-diisopropyl-4,5-dimethylimidazolium}, Mel 5-{2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylide}] are obtained from the corresponding 2-chalcogeno-1,3-diisopropyl-4,5-dimethylimidazolines 8 and 5-bromo-2,2-dimethyl-4,6-dioxo-1,3-dioxan (7) in the presence of triethylamine in excellent yields. The crystal structures of the thermally stable compounds reveal most effective Neuartige zwitterionische Sulfide, Selenide und Telluride [1] Inhaltsübersicht. Die zwitterionischen Verbindungen Im-E-Mel [9, E S (a), Se (b), Te (c), Im 2-{1,3-Diisopropyl-4,5dimethylimidazolium}, Mel 5-{2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylid}] werden durch Umsetzung der entsprechenden 2Chalkogeno-1,3-diisopropyl-4,5-dimethylimidazoline 8 mit 5Brom-2,2-dimethyl-4,6-dioxo-1,3-dioxan (7) in Gegenwart von
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