Copolycondensation of Regular Functional Silane and Siloxane in Aqueous Emulsion Using B(C₆F₅)₃ as a Catalyst

Abstract

What do some fungi have in common with chemists? Common earthballs (see picture) and peppery boletes are true artists in natural product synthesis. In few biosynthetic steps they assemble structurally fascinating alicyclic pigments from simple aromatic precursors.

Siloxane‐Bond Formation Promoted by Lewis Acids: A Nonhydrolytic Sol–Gel Process and the Piers–Rubinsztajn Reaction

“…[39] Cyclosiloxanes were also formed in the reaction, similar to NHSG, and can be a source for extending the siloxane bonds. [53,56,57] In contrast to NHSG, the cleavage of the siloxane bond is observed not only for cyclosiloxanes but also for linear siloxanes. [56] NHSG has not been recognized as a tool for the synthesis of linear siloxane polymers.…”

New Control Over Silicone Synthesis using SiH Chemistry: The Piers–Rubinsztajn Reaction

“…[22] It should be noted that Ganachaud et al have been able to run silicone polymerizations in aqueous dispersions. [23] Thus, the way in which water affects these reactions requires furtheri nvestigation. Note that SiH compounds are well knownt ob es usceptible to oxidation/hydrolysis over time.…”

“…It should be noted that Ganachaud et al. have been able to run silicone polymerizations in aqueous dispersions . Thus, the way in which water affects these reactions requires further investigation.…”

Combinations of Ethers and B(C6F5)3 Function as Hydrogenation Catalysts

“…[8][9][10][11][12][13] Since then, others have developed applications in hydrostannylation, [14,15] silane dehydrocoupling, and silicone production and derivatization. [16][17][18][19][20][21][22][23][24][25] More recently, this electrophile has been exploited in "frustrated Lewis pair" (FLP) chemistry, acting as the Lewis acid partner in conjunction with bases to activate a wide variety of small molecules, including H 2 , CO 2 , olefins, [26] alkynes, [27] N 2 O, [28,29] and NO, [30] among others. [31] The application of this borane in FLP or "metalfree" hydrogenation catalysis [32] has drawn much attention.…”