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• W2073402181 abstract "Tropylierung des Malonaldehyd-Natriumsalzes mit Cycloheptatrienylium-tetrafluoroborat ergab erstmals den enolisierten, s-trans-konfigurierten (2,4,6-Cycloheptatrien-1-yl)malonaldehyd (1). Umsetzungen von 1 mit Anilinen führen zu den 3-Anilino-2-propenalen 3 und 4, mit dem Fischerbase-Quartärsalz zum Pentamethincyanin-Farbstoff 5, mit Maleinsäureanhydrid und Tetracyanethylen zu den Cycloaddukten 6 und 7, und mit bifunktionellen N-Nucleophilen zu den cycloheptatrienlylsubstituierten Heterocyclen 10 – 12. Die Struktur von 3 und 5 wurde röntgenographisch ermittelt. Syntheses with Aliphatic Dialdehydes, XL. – (2,4,6-Cycloheptatrien-1-yl)malonaldehyde – Synthesis, Structure, and Reactions Tropylation of the sodium salt of malonaldehyde with cycloheptatrienylium tetrafluoroborate yielded the enolized, s-trans-configurated (2,4,6-cycloheptatrien-1-yl)malonaldehyde (1) for the first time. Reaction of 1 with anilines leads to the 3-anilino-2-propenals 3 and 4 with Fischer's base to the pentamethine cyanine dye 5, with maleic anhydride and tetracyanoethylene to the cycloadducts 6 and 7, and with bifunctional N-nucleophiles to the cycloheptatrienyl-substituted heterocycles 10 – 12. The structures of 3 and 5 were determined by means of X-ray analyses." @default.
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• W2073402181 date "1985-10-14" @default.
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• W2073402181 title "Synthesen mit aliphatischen Dialdehyden, XL. (2,4,6-Cycloheptatrien-1-yl)malonaldehyd – Herstellung, Struktur und Reaktionen" @default.
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• W2073402181 doi "https://doi.org/10.1002/jlac.198519851006" @default.
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