The telomerization of octamethylcyclotetrasiloxane with fluorinated alkylchlorosilanes was investigated for the first time. The telomerization of octamethylcyclotetrasiloxane with dichloromethyl (3,3,3-trifluoropropyl) silane and with chlorotris (3,3,3-trifluoropropyl) silane leads to the formation of linear structure.
The telomerization of octamethylcyclotetrasiloxane with chlorotris (3,3,3-trifluoropropyl) silane is accompanied by a side reaction in which terminal groups of the telomer are eliminated with formation of hexakis (3,3,3-trifluoropropyl) disiloxane.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2123–2128, December, 1966.
We thank B. V. Lopatin and L. V. Orlova for the spectral analysis of the compounds and A. D. Snegova for the chromatographic analysis.
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Ponomarenko, V.A., Khomutova, N.M. Telomerization of octamethylcyclotetrasiloxane with dichloromethyl (3,3,3-trif luoropropyl) silane and with chlorotris (3,3,3-trif luoropropyl) silane. Russ Chem Bull 15, 2056–2060 (1966). https://doi.org/10.1007/BF00867698
- Side Reaction
- Linear Structure
- Terminal Group