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- W2091773492 abstract "Durch Abänderung unserer früheren Synthesevorschrift für die Dithiapropellane werden die Oxathiapropellane 1–5 in präparativem Maßstab hergestellt. Die Konfigurationen der aus 2–5 erhaltenen Monochloroxathiapropellandioxide 11–16 werden aufgeklärt. Die Überführung von 11–16 in die entsprechenden Oxapropellene 17–19 ist von der Ringgröße des Carbocyclus abhängig. Das 3-Oxa[3.3.2]propell-9-en (17) entsteht nur in ca. 1 proz. Ausb. und ist damit das Oxapropellen mit dem kleinsten Carbocyclus, das nach diesem Syntheseweg hergestellt werden kann. Condensed Ring Systems, XII. On the Influence of the Carbocycle on the Reaction Course of the Ramberg-Bäcklund Reaction of Oxathiapropellanes By modification of our previous specifications for the syntheses of dithiapropellanes, oxathiapropellanes 1–5 are synthesized on a preparative scale. The configurations of monochloro-oxathiapropellane dioxides 11–16 obtained from 2–5 are elucidated. The transformation of 11–16 into the analogous oxapropellenes 17–19 is dependent on the ring size of the carbocycles. 3-Oxa[3.3.2]propell-9-ene (17) is obtained in about 1% yield only, and thus represents the oxapropellene with the smallest carbocycle preparable by this synthetic route." @default.
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- W2091773492 date "1977-09-01" @default.
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- W2091773492 title "Kondensierte Ringsysteme, XII. Über den Einfluß des Carbocyclus auf den Reaktionsverlauf der Ramberg‐Bäcklund‐Reaktion von Oxathiapropellanen" @default.
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- W2091773492 doi "https://doi.org/10.1002/cber.19771100902" @default.
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