- Building blocks for oligomeric siloxanes –selective chlorination of hydrido-siloxanes
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A new method was developed to achieve highly selective monochlorination of α,ω-dihydridosiloxanes, ((H)Me2SiO-(SiMe2O)n-SiMe2(H), n = 0–2; (H)R2Si–O-SiR2(H); R = Me, iPr, Ph; 3,5-dihydridooctamethyltetrasiloxane, Me3SiO-(Si(H)MeO)2–SiMe3) with trichloroisocyanuric acid (TCCA). The dependence of the selectivity of the monochlorination on the siloxane chain length is also discussed.
- Hafner, Thomas,Torvisco, Ana,Uhlig, Frank
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- A Convenient Synthesis of α,ω-Difunctionalized Linear Dimethylsiloxanes with Definite Chain Lengths
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α,ω-Difunctionalized linear dimethylsiloxanes with definite chain lengths are conveniently prepared by the inorganic-solid-catalyzed ring cleavage of cyclodimethylsiloxanes with dimethylchlorosilane and water under very mild conditions.
- Yoshino, Koji,Kawamata, Akira,Uchida, Hiroaki,Kabe, Yoshio
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p. 2133 - 2136
(2007/10/02)
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