5-Dimethylselenanyliden-2.2-dimethyl-4.6-dioxo-1.3-dioxan, ein neues stabiles Selenoniumylid
β Scribed by Ernstbrunner, Edgar ;Lloyd, Douglas
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1971
- Weight
- 125 KB
- Volume
- 753
- Category
- Article
- ISSN
- 0074-4617
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β¦ Synopsis
Abstract
Es wird die Darstellung des im Titel genannten Dimethylselenoniumylids 2 der MeldrumsΓ€ure unter Angabe einiger seiner Spektraldaten beschrieben. Das neue Ylid konnte nicht zur WittigβReaktion gebracht werden.
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The reaction of mono-and dilithio-2,2,4,4,6,6-hexamethylcyclotrisilazane (1, 2) with aminofluorosilanes R -SiF,-NR'SiMe, (R = F, Me; R' = CMe,, SiMe,) leads to LiF elimination and format'ion of the cyclotrisilazanes 3 -5. The cyclodisilazane 6 is obtained by ring contraction in the reaction of compo