21209-32-5Relevant academic research and scientific papers
Photoactivated hydrosilylation reaction of alkynes
Wang, Fei,Neckers, Douglas C.
, p. 1 - 6 (2003)
The photoactivated (350 nm) hydrosilylation of alkynes by silanes catalyzed by platinum(II) bis(acetylacetonato) has been studied. Platinum(II) bis(acetylacetonato) is an efficient catalyst. High yields of adducts ( > 98% for terminal alkynes) can be obta
Stoichiometric and catalytic activation of sp2 C-H bonds: Molecular structure of Os3( μ-H)( μ3-nBuOC=CHPEt2)( CO) 9 and catalytic properties of this and related Os and Ru clusters
Voskoboynikov, Alexander Z.,Osina, Marina A.,Shestakova, Alla K.,Kazankova, Marina A.,Trostyanskaya, Inna G.,Beletskaya, Irina P.,Dolgushin, Fedor M.,Yanovsky, Alexander I.,Struchkov, Yuri T.
, p. 71 - 78 (1997)
The thermal reaction of "BuOCH=CHPEt2 with Os3(CO)12 gives a new osmium triangular cluster, Os3(μ-H)(μ3-"BuOC=CHPEt2)(CO)9 (1), which was isolated in 62% yield. The structure of
Nickel-Catalyzed Decarboxylative C–Si Bond Formation: A Regioselective Cross-Coupling Between Trialkyl Silanes and α,β-Unsaturated Carboxylic Acids
Allam, Bharat Kumar,Azeez, Sadaf,Kandasamy, Jeyakumar
, (2019)
This report presents the first example of nickel-catalyzed mild decarboxylative cross-coupling reaction for the regioselective formation of C–Si bond. An easily accessible and significantly stable Ni (dmg)2 owes the role of key promoter. This r
Functionalized vinylsilanes via highly efficient and recyclable Pt-nanoparticle catalysed hydrosilylation of alkynes
Chauhan, Bhanu P. S.,Sarkar, Alok
, p. 8709 - 8715 (2017)
A mild, selective and facile synthesis of vinylsilanes via a recyclable platinum nanoparticle catalysed hydrosilylation of alkynes is reported. Various functionalized alkynes are selectively hydrosilylated to furnish functional β-E vinylsilanes in high yi
Water-soluble N-heterocyclic carbene platinum(0) complexes: Recyclable catalysts for the hydrosilylation of alkynes in water at room temperature
Silbestri, Gustavo F.,Flores, Juan Carlos,De Jesus, Ernesto
, p. 3355 - 3360 (2012)
The synthesis and characterization of new water-soluble platinum(0) complexes bearing sulfonated N-heterocyclic carbene (NHC) and divinyltetramethylsiloxane (dvtms) ligands are described. These complexes, of the general formula (NHC)Pt(dvtms), are active
Reaction pathways of zirconocene-catalyzed silylation of alkenes with chlorosilanes
Terao, Jun,Jin, Yingshi,Torii, Kazushi,Kambe, Nobuaki
, p. 1301 - 1308 (2004)
Reaction pathways as well as stereochemistries and stoichiometries of zirconocene-catalyzed silylation of olefins with chlorosilanes in the presence of nBuMgCl were studied and discussed in detail. Rate determining steps were examined by kineti
Selective hydrosilylation of alkynes with a nanoporous gold catalyst
Ishikawa, Yoshifumi,Yamamoto, Yoshinori,Asao, Naoki
, p. 2902 - 2905 (2013)
The hydrosilylation of acetylenic compounds proceeded smoothly in the presence of a reusable nanoporous gold catalyst under mild conditions and the β-(E)-cis-addition products were obtained in good to high yields regio- and stereoselectively.
Short-chained platinum complex catalyzed hydrosilylation under thermomorphic conditions: Heterogeneous phase separation at ice temperature
Chiu, Chiao-Fan,Ho, Jinn-Hsuan,Lin, Chang-Wei,Lu, Norman,Lu, Yijing,Shen, Chia-Rui,Tessema, Eskedar
, (2021)
Homogeneous catalysts PtCl2 [5,5′-bis-(n-ClCF2 (CF2 )3 CH2 OCH2 )-2,2′-bpy] (2A) and PtCl2 [5,5′-bis-(n-HCF2 (CF2 )3 CH2 OCH2 )-2,2′-bpy] (2B), which contained short fluorous chains, were synthe-sized and used in catalysis of hydrosilylation of alkynes. In these reactions the thermomorphic mode was effectively used to recover these catalysts from the reaction mixture up to eight cycles by taking advantage of heterogeneous phase separation at ice temperature. This kind of catalysis had previously been observed in fluorous catalysts of platinum containing about 50% F-content, but in this work the percentage of F-content is decreased to only about 30%, by which we termed them as “very light fluorous”. Our new type of catalyst with limited number of F-content is considered as the important discovery in the fluorous technology field as the reduced number of fluorine atoms will help to be able to comply the EPA 8-carbon rule. The metal leaching after the reaction has been examined by ICP-MS, and the testing results show the leaching of residual metal to be minimal. Additionally, comparing these results to our previous work, fluorous chain assisted selectivity has been observed when different fluorous chain lengths of the catalysts are used. It has been found that there exists fluorous chain assisted better selectivity towards β-(E) form in the Pt-catalyzed hydrosilylation of non-symmetric terminal alkyne when the Pt catalyst contains short fluorous chain (i.e., 4 Cs). Phenyl acetylenes showed the opposite regioselectivity due to pi-pi interaction while using the same catalyst via Markovnikov’s addition to form terminal vinyl silane, which is then a major product for Pt-catalyzed hydrosilylation of terminal aryl acetylene with triethylsilane. Finally, the kinetic studies indicate that the insertion of alkyne into the Pt-H bond is the rate-determining step.
Completely selective synthesis of (E)-β-(triethylsilyl)styrenes by Fe3(CO)12-catalyzed reaction of styrenes with triethylsilane
Kakiuchi, Fumitoshi,Tanaka, Yasuo,Chatani, Naoto,Murai, Shinji
, p. 45 - 47 (1993)
Using Fe3(CO)12 as the catalyst, the reaction of styrenes (C6H5CH=CH2, p-CH3C6H4CH=CH2, p-ClC6H4CH=CH2, and p-CH3OC6H4CH=CH2) with triethylsilane gave (E)-β-(triethylsilyl)styrenes (2a, (E)-C6H5CH=CHSiEt3; 2b, (E)-p-CH3C6H4CH=CHSiEt3; 2c, (E)-p-ClC6H4CH=C
Engineering regioselectivity in the hydrosilylation of alkynes using heterobimetallic dual-functional hybrid catalysts
Downes, James E.,Gautam, Shreedhar,Gon?ales, Vinicius R.,Gooding, J. Justin,Keaveney, Sinead T.,Lian, Jiaxin,Messerle, Barbara A.,Roemer, Max
, p. 226 - 236 (2022/01/19)
The synthesis and characterization of carbon black supported rhodium and iridium heterobimetallic catalysts, termed hybrid catalysts, and their application in the hydrosilylation of alkynes is described. An aryl diazonium grafting procedure was applied to
