Organosilanes as synthetic precursors for oligosiloxanes and phenylsilica spheres

The study describes the synthesis of disiloxanes, R 3 SiOSiR 3 , tetraorganodisiloxanes-1,3-diols, (RR 1 SiOH) 2 O, and silanol, t -Bu 2 Si(H)OH, by AuNP-catalyzed hydrolytic oxidation of Si-H bond(s) in organosilanes. The method relies upon the en-route formation of an oil-in-water microemulsion th...

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Bibliographic Details
Published in:New journal of chemistry 2024-05, Vol.48 (2), p.9224-923
Main Authors: Jain, Ragini, Shankar, Ravi
Format: Article
Language:English
Subjects:
Ammonia
Diols
Hydrogen bonds
Oxidation
Substrates
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Summary:The study describes the synthesis of disiloxanes, R 3 SiOSiR 3 , tetraorganodisiloxanes-1,3-diols, (RR 1 SiOH) 2 O, and silanol, t -Bu 2 Si(H)OH, by AuNP-catalyzed hydrolytic oxidation of Si-H bond(s) in organosilanes. The method relies upon the en-route formation of an oil-in-water microemulsion that is dispersed in the continuous water phase and stabilized by amphiphilic AuNPs. The reaction of (MePhSiOH) 2 O with (HMe 2 Si) 2 NH proceeds via O -silylation of silanol groups to afford an Si-H-terminated chain with the liberation of NH 3 as the byproduct. The application of this approach provides a viable synthetic solution to organosilica colloidal structures using primary organosilanes, RSiH 3 (R = Ph, n -hexyl) as substrates. Chemical transformation of organo(hydro)silanes to disiloxanes, siloxanols and organosilica colloidal structures is achieved using AuNP-catalyzed hydrolytic oxidation of Si-H bonds.
ISSN:1144-0546
1369-9261
DOI:10.1039/d4nj00543k