134837-65-3

Upstream product

• 111-67-1 2-octene 
• 78-08-0 Triethoxyvinylsilane 
• 111-66-0 oct-1-ene 
• 998-30-1 Triethoxysilane 

Downstream Products

• 118319-48-5 (E)-1-(oct-1-en-1-yl)naphthalene 
• 101720-90-5 1-(1-methylideneheptyl)naphthalene 
• 146857-78-5 (Z)-1-methoxy-4-(oct-1-en-1-yl)benzene 
• 129182-23-6 1-methoxy-4-(oct-1-en-2-yl)benzene 
• 688805-11-0 (Z)-1-(4-acetylphenyl)oct-1-ene 
• 118319-39-4 (E)-1-(4-(oct-1-en-1-yl)phenyl)ethanone 
• 3112-03-6 (Z)-4-acetylstilbene 
• 20488-43-1 4-acetyl-trans-stilbene 
• 87324-13-8 1-(4-(1-phenylvinyl)phenyl)ethanone 

Relevant academic research and scientific papers

Mode of activation of cobalt(II) amides for catalytic hydrosilylation of alkenes with tertiary silanes

Cobalt(II) complexes capable of catalyzing alkene hydrosilylation in the absence of external activators are rarely known, and their activation mode has remained poorly understood. We present here that cobalt(II) amide complexes, [Co(N(SiMe3)2)2] and its NHC adducts [(NHC)Co(N(SiMe3)2)2] (NHC = N-heterocyclic carbene), are effective catalysts for the hydrosilylation of alkenes with tertiary silanes. Mechanistic studies revealed that cobalt(II) amides can react with hydrosilane to form cobalt(I) species, silylamide, and hydrogen, which serves as the entry to the genuine catalytically active species, presumably cobalt(I) species, for the cobalt-catalyzed hydrosilylation reaction.

Effect of triarylphosphane ligands on the rhodium-catalyzed hydrosilylation of alkene

A series of triarylphosphanes (1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a, 9a, 10a, 11a) have been synthesized. An X-ray crystal structure analysis of (2-bromophenyl)diphenylphosphane (1a) unambiguously confirmed the constitution of the functionalized phosphane. The hydrosilylation reaction of styrene with triethoxysilane catalyzed with RhCl3/triarylphosphane was studied. In comparison with the classic Wilkinson's catalyst, rhodium complexes with functionalized triarylphosphane ligands are characterized by a very high catalytic effectiveness for the hydrosilylation of alkene. Among these catalysts tested, RhCl3/diphenyl(2-(trimethylsilyl)phenyl)phosphane (8a) exhibited excellent catalytic properties. Using this silicon-containing phosphane ligand for the rhodium-catalyzed hydrosilylation of styrene, both higher conversion of alkene and higher β-adduct selectivity were obtained than with Wilkinson's catalyst.

Isomerization of Acyclic Alkenes Accompanying their Cometathesis with Vinyltriethoxysilane

The isomerization reactions ((E)/(Z) isomerization and double-bond migration) are observed when terminal and internal alkenes are cometathesized with vinyltriethoxysilane in the presence of RuCl2(PPh3)3 catalyst.These two reactions appear to have the same intermediate in the transition state.Hydrido-?-allyl mechanism of isomerization is suggested to explain experimental results. Key words: acyclic alkene isomerization, vinyltriethoxysilane cometathesis, ruthenium catalyst