104080-51-5Relevant articles and documents
A recyclable and reusable K2PtCl4/Xphos-SO3Na/PEG-400/H2O system for highly regio- and stereoselective hydrosilylation of terminal alkynes
Xu, Caifeng,Huang, Bin,Yan, Tao,Cai, Mingzhong
supporting information, p. 391 - 397 (2018/02/07)
K2PtCl4/Xphos-SO3Na in a mixture of poly(ethylene glycol) (PEG-400) and water is shown to be a highly regio- and stereoselective catalyst for the hydrosilylation of terminal alkynes with hydrosilanes. The reaction could be conducted under mild conditions, yielding a variety of functionalized β-(E)-vinylsilanes in good to excellent yields with a total β-(E)-selectivity. The isolation of the products is readily performed by extraction with cyclohexane and more importantly, both expensive K2PtCl4 and Xphos-SO3Na in a PEG-400/H2O system could be easily recycled and reused at least eight times without any loss of catalytic activity.
User-Friendly Platinum Catalysts for the Highly Stereoselective Hydrosilylation of Alkynes and Alkenes
Dierick, Steve,Vercruysse, Emilie,Berthon-Gelloz, Guillaume,Mark?, István E.
supporting information, p. 17073 - 17078 (2015/11/16)
With a view to addressing the shortcomings of traditional catalysts, a new generation of outstanding N- heterocyclic carbene platinum(0) complexes for the hydrosilylation of unsaturated carbon-carbon bonds is reported. Their discovery and application to the stereoselective addition of various silanes to silylated alkynes, terminal acetylenes, and olefins is presented. Insights into the catalytic cycle and the origin of the stereoselectivity are also discussed.
Stereospecific synthesis of cyclobutylboronates through copper(I)-catalyzed reaction of homoallylic sulfonates and a diboron derivative
Ito, Hajime,Toyoda, Takashi,Sawamura, Masaya
supporting information; body text, p. 5990 - 5992 (2010/07/05)
A copper(I)-catalyzed stereospecific reaction for the preparation of cis- and trans-1-silyl-2-borylcyclobutanes as well as 1-phenyl-2-borylcyclobutanes is reported. (Z)- and (E)-Homoallylic methanesulfonates were converted to the corresponding trans- and
Configuration-dependent ring opening of silyloxiranes: synthesis of functionalized alkenes or tetrahydrofurans
Lange, Jens,Schaumann, Ernst
experimental part, p. 4674 - 4684 (2009/12/06)
cis- and trans-Silyloxiranes with a potential tosylate or bromide leaving group in the β position are available by the diastereospecific reduction of the corresponding alkynes with DIBAL-H and hydrosilylation with silanes, respectively. In the reaction wi
Gold-catalyzed cycloisomerizations of ene-ynamides
Couty, Sylvain,Meyer, Christophe,Cossy, Janine
experimental part, p. 1809 - 1832 (2009/06/28)
The gold-catalyzed cycloisomerizations of 1,6-ene-ynamides proceed under mild conditions and lead to cyclobutanones from terminal or trimethylsilyl substituted ynamides, or to carbonyl compounds bearing a 2,3-methanopyrrolidine subunit from substrates pos
Selective hydrosilylation of 1-alkynes using iridium catalyst with biphosphinine ligand
Miyake, Yoshihiro,Isomura, Eigo,Iyoda, Masahiko
, p. 836 - 837 (2007/10/03)
The iridium-catalyzed hydrosilylation of alkynes in the presence of 4,4′,5,5′-tetramethylbiphosphinine (tmbp) has been explored. The hydrosilylation of alkynes in the presence of tmbp proceeds effectively to give β-(E)-vinylsilanes highly selectively in m
Hydrosilylation of alkynes catalyzed by ruthenium carbene complexes
Maifeld, Sarah V.,Tran, Michael N.,Lee, Daesung
, p. 105 - 108 (2007/10/03)
Hydrosilylation of terminal alkynes with a variety of silanes catalyzed by Cl2(PCy3)2RuCHPh (1) affords mainly the Z-isomer via trans addition in excellent yields. The presence of a hydroxyl group in close proximity to the
Allylsilanes in organic synthesis; convenient preparation of synthetic intermediates by catalytic hydrosilation of acetylenic alcohols
Murphy,Spencer,Procter
, p. 1051 - 1054 (2007/10/02)
Synthetically useful vinylsilane-alcohols such as (1) can be easily prepared by the catalytic hydrosilation of the appropriate acetylenic alcohols in high yield, and with excellent regio- and stereoselectivity, without the need to protect the hydroxyl gro
TRANSITION-METAL CATALYZED REGIOSELECTIVE ADDITION OF PhMe2SiBEt3Li AND Bu3SnBEt3Li TO ACETYLENIC COMPOUNDS IN THE PRESENCE OF METHANOL
Nozaki, Kyoko,Wakamatsu, Kuni,Nonaka, Tsuyoshi,Tueckmantel, Werner,Oshima, Koichiro,Utimoto, Kiitiro
, p. 2007 - 2010 (2007/10/02)
Treatment of acetylenic compounds with PhMe2SiBEt3Li in the presence of a transition-metal catalyst affords vinylsilanes in good yields.Coexistence of methanol as a proton source is essential for the completion of the reaction.
TRANSITION-METAL CATALYZED SILYLZINCATION AND SILYLALUMINATION OF ACETYLENIC COMPOUNDS
Wakamatsu, Kuni,Nonaka, Tsuyoshi,Okuda, Yasuhiro,Tueckmantel, Werner,Oshima, Koichiro,et al.
, p. 4427 - 4436 (2007/10/02)
Dialkyl(dimethylphenylsilyl)zinclithium and trialkyl(dimethylphenylsilyl)aluminiumlithium add effectively to internal acetylenes as well as terminal ones in the presence of transition-metal catalysts to provide vinylsilanes with high stereo- and regiosele