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• W2165786297 endingPage "1255" @default.
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• W2165786297 abstract "The novel Lewis acids (CH3)3SiOSO2CF3 (3), (CH3)5SiOSO2C4F9 (6), and (CH3)3SiClO4 (4) are highly selective and efficient Friedel-Crafts catalysts for nucleoside formation form silylated heterocycles and peracylated sugars as well as for rearrangements of persilylated protected nucleosides. With basic silylated heterocycles these new catalysts give much higher yields of the natural N-1-nucleosides than with SnCl4. Nucleosid-Synthesen, XXII1) Nucleosid-Synthese mit Trimethylsilyltriflat und Perchlorat als Katalysatoren Die Neuen Lewis-Säuren (CH3)3SiOSO2CF3 (5), (CH3)3SiOSO2C4F9 (6), und (CH3)3SiClO4 (4) sind sehr spezifische und effektive Friedel-Crafts-Katalysatoren für die nucleosid-Synthese mit silylierten Heterocyclen und peracyclierten Zuckern sowie für die Umlagerung von persilylierten geschützten Nucleosiden. Insbesondere bei basischen silylierten Heterocyclen ergeben diese neuen Katalysatoren viel höhere Ausbeuten and natürlichen N-1-Nucleosiden als SnCl4." @default.
• W2165786297 created "2016-06-24" @default.
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• W2165786297 date "1981-04-01" @default.
• W2165786297 modified "2023-10-16" @default.
• W2165786297 title "Nucleoside syntheses, XXII ¹⁾ Nucleoside synthesis with trimethylsilyl triflate and perchlorate as catalysts" @default.
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• W2165786297 doi "https://doi.org/10.1002/cber.19811140404" @default.
• W2165786297 hasPublicationYear "1981" @default.
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