17911-16-9

Upstream product

• 108-86-1 bromobenzene 
• 17898-28-1 2-bromopropyl-triethylsilane 
• 617-86-7 triethylsilane 
• 98-83-9 isopropenylbenzene 
• 745783-97-5 triethyl(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)silane 

Relevant academic research and scientific papers

Steric Effects in the Catalytic Tandem Isomerization-Hydrosilylation Reaction

The selective synthesis of linear silanes from remote alkenes is reported. Four new silane-thioether bidentate proligands [SiMe2H(o-C6H4SR)] (R=iBu, pentyl, benzyl, neopentyl) have been synthesized and used to f

Nickel(ii)-catalyzed reductive silylation of alkenyl methyl ethers for the synthesis of alkyl silanes

A new one pot protocol has been developed for the reductive silylation of alkenyl methyl ethers using Et3Si-BPin and HSiEt3 with nickel(ii) catalyst. Styrene type methyl ethers, multi-substituted vinyl methyl ethers, heterocycles and unconjugated vinyl ethers are all tolerated to form alkyl silanes. Mechanistic study reveals that it is a cascade of a C-O bond silylation and vinyl double bond hydrogenation process. Internal nucleophilic substitution or oxidative addition pathways were both acceptable for C-O bond cleavage. The acquired intermediate alkenyl silanes then proceeded through an unconventional reduction process thus providing alkyl silanes.

Carbonyl and olefin hydrosilylation mediated by an air-stable phosphorus(iii) dication under mild conditions

The readily-accessible, air-stable Lewis acid [(terpy)PPh][B(C6F5)4]21 is shown to mediate the hydrosilylation of aldehydes, ketones, and olefins. The utility and mechanism of these hydrosilylations are considered.

NOBLE METAL-FREE HYDROSILYLATABLE MIXTURE

The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic

Silicon(II) Cation Cp*Si:+ X-: A New Class of Efficient Catalysts in Organosilicon Chemistry

The catalytic activity of the pentamethylcyclopentadienylsilicon(II) cation Cp*Si:+ was investigated. It was shown that Cp*Si:+ efficiently catalyzes reactions of technical relevance in organosilicon chemistry: Cp*Si:+ proved to be a very efficient nonmetallic catalyst for the hydrosilylation of olefins at low catalyst amounts of 0.01 mol % and for the Piers-Rubinsztajn reaction in order to make controlled silicone topologies. The thermal induction of hydrosilylation which is important for the manufacturing of silicone rubber can be achieved by small amounts of alkoxysilanes.

CARBOCATIONICALLY HYDROSILYLATABLE MIXTURE

Subject-matter of the invention is a hydrosilylatable mixture M comprising compound (C), which contains at least one carbocationic structure, and compound (A), which has at least one directly Si-bonded hydrogen atom and compound (B), which contains at lea

From Remote Alkenes to Linear Silanes or Allylsilanes depending on the Metal Center

The selective synthesis of linear silanes or allylsilanes from remote alkenes was explored. The cationic, unsaturated, 16-electron hydrido–silyl–RhIII complex was found to be an efficient catalyst for a tandem catalytic alkene isomerization–hyd

Rhodium(III) Catalyzed Solvent-Free Tandem Isomerization–Hydrosilylation From Internal Alkenes to Linear Silanes

The selective synthesis of linear silanes from internal alkenes or alkene mixtures is reported. Unsaturated 16 electrons hydrido–silyl–RhIII complexes are efficient catalysts for a tandem catalytic alkene isomerization–hydrosilylation reaction at room temperature under solvent-free conditions. Such a process would be of value to the chemical industry, as mixtures of internal aliphatic olefins are substantially cheaper and more readily available than the pure terminal isomers.

Catalytic double hydroarylation of alkynes to 9,9-disubstituted 9,10-dihydroacridine derivatives by an electrophilic phenoxyphosphonium dication

The electrophilic pyridinium-substituted phenoxy-phosphonium dicationic salt [(PhO)P(2-(N-Mepy))Ph2][B(C6F5)4]2, is shown to be an effective catalyst for the double hydroarylation of alkynes with diarylamines to afford a series of 9-methyl-9-aryl-9,10-dihydroacridine and 9,10-dimethyl-9-aryl-9,10-dihydroacridine derivatives.

Electrophilic phosphonium cations (EPCs) with perchlorinated-aryl substituents: Towards air-stable phosphorus-based Lewis acid catalysts

A series of phosphines incorporating (C6Cl5) substituents, Ph2P(C6Cl5) 1, PhP(C6Cl5)22, P(C6Cl5)33 and (C6F5)P(C6Cl5)24 were prepared. In the case of 1, 2 and 4, these were converted to the corresponding aryl-difluorophosphoranes 5-7via reaction with XeF2, whereas reaction of 3 with XeF2 afforded only an inseparable mixture of products. The compounds 5-7 were converted to the fluorophosphonium cations 8-10, whereas the reaction of 3 with Selectfluor afforded (C6Cl5)2POF and (C6Cl5)2. The fluorophosphonium salts showed evidence of improved air stability as well as Lewis acid catalytic activity in hydrodefluorination, hydrosilylation, deoxygenation and dehydrocoupling chemistry.