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- W1984277002 abstract "(Fluorosilyl)hydrazones are obtained from the reaction of lithiated hydrazones with fluorosilanes. On subsequent reaction with tert-butyllithium, cyclization takes place, to give 1,2-diaza-3-sila-5-cyclopentenes; this cyclization is favoured by the nitrogen-substituent of the hydrazone. The CH2 group of the heterocyclic compounds is a nucleophilic centre, at which further substitutions are possible. The mass spec- trum and 1H-, 19 F- and 29Si-NMR spectra are reported. In Umsetzungen von Fluorsilanen mit lithiierten Hydrazonen sind (Fluorsilyl)- hydrazone erhältlich. In weiterer Reaktion mit tert.-Butyllithium cyclisieren diese zu 1,2-Diaza-3-sila-5-cyclopentenen. Die Ringbildung wird durch den Stickstoffsub- stituenten der Hydrazone begünstigt. Die Heterocyclen besitzen in der CH2-Gruppie- rung ein nucleophiles Zentrum, an dem weitere Substitutionen möglich sind. Die Massenspektren, 1H-, 19F- und 29Si-NMR-Spektren der dargestellten Verbindungen werden mitgeteilt." @default.
- W1984277002 created "2016-06-24" @default.
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- W1984277002 date "1979-10-01" @default.
- W1984277002 modified "2023-09-23" @default.
- W1984277002 title "Darstellung und reaktionen von 1,2-diaza-3-sila-5-Cyclopentenen" @default.
- W1984277002 cites W1992503876 @default.
- W1984277002 doi "https://doi.org/10.1016/s0022-328x(00)94229-3" @default.
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