Solvent-Free Synthesis of Siloxanes and their Usage as Potential Cross-Coupling Reagents
Hexaarylcyclotrisiloxanes were selectively prepared by solvent-free synthesis from diarylsilanediol. These well-known stable compounds were found to undergo palladium-catalyzed cross-coupling reaction with aryl halides in good yields. All of attached aryl groups on silicon atom could be utilized. Furthermore, base-sensitive functionality such as acetyl and nitro groups survived the reaction.
Osamu Hanaizumi and Masafumi Unno
M. Unno et al., "Solvent-Free Synthesis of Siloxanes and their Usage as Potential Cross-Coupling Reagents", Key Engineering Materials, Vol. 459, pp. 43-47, 2011