90260-88-1Relevant academic research and scientific papers
Highly β(Z)-Selective Hydrosilylation of Terminal Alkynes Catalyzed by Thiolate-Bridged Dirhodium Complexes
Zhao, Xiangyu,Yang, Dawei,Zhang, Yahui,Wang, Baomin,Qu, Jingping
supporting information, p. 5357 - 5361 (2018/09/13)
A series of novel monothiolate-bridged dirhodium complexes, [Cp Rh(μ-SR)(μ-Cl)2RhCp ][BF4] {Cp? = ??5-C5Me5, R = tertiary butyl (tBu), 1a; R = ferrocenyl (Fc), 1b; R = adamantyl (Ad), 1c} were designed and successfully synthesized, which can smoothly facilitate highly regioselective and stereoselective hydrosilylation of terminal alkynes to afford β(Z) vinylsilanes with good functional group compatibility. Furthermore, the hydride bridged dirhodium complex [Cp Rh(μ-StBu)(μ-Cl)(μ-H)RhCp ][BF4] (5) as a potential intermediate was obtained by the reaction of 1a with excess HSiEt3.
The effect of an acylphosphine ligand on the rhodium-catalyzed hydrosilylation of alkenes
Li, Jiayun,Yang, Chuang,Bai, Ying,Yang, Xiaoling,Liu, Yu,Peng, Jiajian
, p. 7 - 11 (2018/01/01)
We synthesized a series of acylphosphines and investigated the hydrosilylation of alkenes that were catalyzed using RhCl3/acylphosphine. The results indicated that RhCl3/(diphenylphosphino) (phenyl)methanone exhibited higher activity as well as higher levels of β–adduct selectivity.
Synthesis of novel poly(ethylene glycol)-containing imidazolium-functionalized phosphine ligands and their application in the hydrosilylation of olefins
Zhang, Guodong,Li, Jiayun,Yang, Chuang,Niu, Congbai,Bai, Ying,Liu, Yu,Peng, Jiajian
, (2018/02/27)
A series of polyethylene glycol-containing imidazolium-functionalized phosphine ligands (mPEG-im-PPh2) were successfully synthesized and used in the rhodium-catalyzed hydrosilylation of olefins. The results indicate that the RhCl3/mPEG-im-PPh2 catalytic system exhibits both excellent activity and selectivity for the β-adduct. In addition, the catalytic system may be recycled at least six times.
Rubber reinforcing agent, preparation method thereof, and preparation method of butadiene styrene rubber
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Paragraph 0052; 0053, (2016/10/10)
The invention provides a rubber reinforcing agent, a preparation method thereof, and a preparation method of butadiene styrene rubber. In the invention, firstly the rubber reinforcing agent having excellent reaction activity with butadiene styrene rubber
Effect of silylated triarylphosphine ligands on rhodium-catalyzed hydrosilylation
Li, Jiayun,Xue, Mei,Bai, Ying,Peng, Jiajian,Xiao, Wenjun
, p. 905 - 910 (2016/10/18)
A series of silylated triarylphosphines was synthesized. Hydrosilylation reactions of styrene with triethoxysilane catalyzed by RhCl3/silylated triarylphosphine complexes were investigated. The complexes RhCl3/phenylbis(4-trimethylsilylphenyl)phosphine and RhCl3/tris(4-trimethylsilylphenyl)phosphine exhibited higher activity as well as greater β-adduct selectivity, and no unsaturated product was obtained. The results suggest that the silyl moieties have a significant impact on the catalytic process. Copyright
Platinum(0) olefin complexes of a bulky terphenylphosphine ligand. Synthetic, structural and reactivity studies
Ortega-Moreno, Laura,Peloso, Riccardo,Maya, Celia,Suárez, Andrés,Carmona, Ernesto
supporting information, p. 17008 - 17011 (2015/12/01)
A novel terphenylphosphine PMe2ArDipp2 (1) (Dipp = 2,6-iPr2C6H3) forms stable Pt(0) complexes with ethene and 3,3-dimethylbut-1-ene that behave as sources of the reactive Pt(PMe
Application of polyethyleneglycol (PEG) functionalized ionic liquids for the rhodium-catalyzed hydrosilylation reaction of alkenes
Bai, Ying,Zhang, Fengxiang,Li, Jiayun,Xu, Yisong,Peng, Jiajian,Xiao, Wenjun
, p. 65 - 69 (2015/07/15)
Abstract Rh(PPh3)3Cl-polyethyleneglycol (PEG) functionalized ionic liquids with various anions were used as a catalytic system for the hydrosilylation reaction of alkenes. The influence of the anion of the ionic liquid has been investigated. It was found that the anion has an impact on the catalytic activity and selectivity. [PEG400DIL][PF6]-[Rh(PPh3)3Cl] shows an improved catalytic performance towards the hydrosilylation reaction of alkenes. The scope of alkenes and recycling of the catalytic system have been investigated.
Combinatorial Approach to the Catalytic Hydrosilylation of Styrene Derivatives: Catalyst Systems Composed of Organoiron(0) or (II) Precursors and Isocyanides
Sunada, Yusuke,Noda, Daisuke,Soejima, Hiroe,Tsutsumi, Hironori,Nagashima, Hideo
supporting information, p. 2896 - 2906 (2015/06/30)
(COT)2Fe and the open ferrocenes (MPDE)2Fe (MPDE = η5-3-methylpentadienyl) and (DMPDE)2Fe (DMPDE = η5-2,4-dimethylpentadienyl) were found to function as catalyst precursors for the hydrosilylation of alkenes in the presence of auxiliary ligands. Screening trials determined that the optimal catalyst system was composed of (COT)2Fe and adamantyl isocyanide, allowing the selective hydrosilylation of styrene derivatives with trisubstituted hydrosiloxanes and a polydimethylsiloxane bearing Me2SiH moieties as the end groups. Under the appropriate conditions, the dehydrogenative silylation side reaction was completely suppressed, and the reaction TON exceeded 5000. (Chemical Equation Presented).
Catalysed stereodivergent hydrosilylation with Onium Salts stabilised M(0) nanocatalysts prepared in scCO2
Pascu,Liautard,Vaultier,Pucheault,Aymonier
, p. 59953 - 59960 (2015/02/19)
M(0) nanocatalysts stabilised in Onium Salt were synthesised using an original preparation and their effectiveness in catalysing the challenging selective sterodivergent alkyne hydrosilylation reaction was studied. Four metal based nanocrystals, namely Pt
