Ruthenium-catalyzed alkoxylation of a hydrodisilane without Si Si bond cleavage

Stepwise Introduction of Different Substituents to α-Chloro-ω-hydrooligosilanes: Convenient Synthesis of Unsymmetrically Substituted Oligosilanes

“…As mentioned above, we have reported ruthenium-catalyzed dehydrogenative alkoxylation of a hydrodisilane with alcohols without Si-Si bond cleavage [44]. The reactions are also applicable to various hydrotrisilanes.…”

“…The results are summarized in Tables 1 and 2. Even though an excess amount of methanol (10 equiv) was used in the reaction of 22, the reaction rate is much slower than that of PhMe 2 SiSiMe 2 H, which finished within 2 h under the same reaction conditions [44]. When bulkier alcohols are used, the reaction rate becomes slower.…”

“…chlorosilane moiety. Furthermore, we have recently found ruthenium-catalyzed dehydrogenative alkoxylation of a hydrodisilane with alcohols [44]. Interestingly, the reactions proceed with preserving the Si-Si bond despite its susceptible nature to transition metals [37][38][39][40].…”

Synthesis, structures, and reactivity of 9,9‐dialkoxy‐9‐silafluorenes

“…[16] The last strategy seems suitable for the synthesis of a series of 9-alkoxylated 9-silafluorenes because a large number of hydrosilanes and alcohols have been reported to be successfully coupled with transition metal catalysts. [19][20][21][22][23][24] We report herein synthesis of various 9-alkoxylated 9-silafluorenes by means of transition metal-catalyzed dehydrogenative alkoxylation of 9,9-dihydro-9-silafluorene.…”

“…The precedent 9‐alkoxylated 9‐silafluorenes shown in Scheme were synthesized by a photochemical reaction, cleavage of the Si–Si bond of a 9‐silafluorene dimer in the presence of an alcohol, and transition metal‐catalyzed dehydrogenative coupling with an alcohol . The last strategy seems suitable for the synthesis of a series of 9‐alkoxylated 9‐silafluorenes because a large number of hydrosilanes and alcohols have been reported to be successfully coupled with transition metal catalysts . We report herein synthesis of various 9‐alkoxylated 9‐silafluorenes by means of transition metal‐catalyzed dehydrogenative alkoxylation of 9,9‐dihydro‐9‐silafluorene.…”