66774-54-7Relevant academic research and scientific papers
Catalytic hydrosilylation of olefins and ketones by base metal complexes bearing a 2,2′:6′,2″-terpyridine ancillary ligand
Kobayashi, Katsuaki,Nakazawa, Hiroshi
, (2021/06/12)
The activities of [M(tpy)Br2] (M = Mn, Co, Ni, or Cu) for the hydrosilylation of olefins and ketones were investigated in the presence of NaBHEt3 as an activator. [Co(tpy)Br2] and [Ni(tpy)Br2] showed catalytic a
CpFe(CO)2anion-catalyzed highly efficient hydrosilylation of ketones and aldehydes
Cui, Chunming,Fan, Xingchao,Lou, Ke,Wang, Qi,Xu, Xiufang,Zhou, Qingyang
supporting information, p. 11016 - 11020 (2021/08/24)
K[CpFe(CO)2] and [NEt4][CpFe(CO)2] enabled highly efficient hydrosilylation of ketones and aldehydes with PhSiH3 to synthesize tris- and bis(alkoxy)silanes in excellent yields depending on the substituents on the carbonyl compounds. The catalyst represent
Hydrosilylation of Ketones Catalyzed by Iron Iminobipyridine Complexes and Accelerated by Lewis Bases
Kobayashi, Katsuaki,Izumori, Yosuke,Taguchi, Daisuke,Nakazawa, Hiroshi
, p. 1094 - 1102 (2019/09/06)
Fe-iminobipyridine complexes ((RBPIAr,R′)FeBr2, RBPIAr,R′=iminobipyridine derivatives) were found to exhibit good catalytic activity for hydrosilylation of ketones. The highest TOF (turnover frequency
Hydrosilylation of Aldehydes and Ketones Catalyzed by a Terminal Zinc Hydride Complex, [κ3-Tptm]ZnH
Sattler, Wesley,Ruccolo, Serge,Rostami Chaijan, Mahnaz,Nasr Allah, Tawfiq,Parkin, Gerard
, p. 4717 - 4731 (2015/10/28)
Tris(2-pyridylthio)methyl zinc hydride, [κ3-Tptm]ZnH, is an effective catalyst for multiple insertions of carbonyl groups into the Si-H bonds of PhxSiH4-x (x = 1, 2). Specifically, [κ3-Tptm]ZnH catalyzes the insertion of a variety of aldehydes and ketones into the Si-H bonds of PhSiH3 and Ph2SiH2 to afford PhSi[OCH(R)R′]3 and Ph2Si[OCH(R)R′]2, respectively. The mechanism for hydrosilylation is proposed to involve insertion of the carbonyl group into the Zn-H bond to afford an alkoxy species, followed by metathesis with the silane to release the alkoxysilane and regenerate the zinc hydride catalyst. Multiple insertion of prochiral ketones results in the formation of diastereomeric mixtures of alkoxysilanes that can be identified by NMR spectroscopy.
Cesium carbonate catalyzed chemoselective hydrosilylation of aldehydes and ketones under solvent-free conditions
Zhao, Mengdi,Xie, Weilong,Cui, Chunming
supporting information, p. 9259 - 9262 (2014/08/05)
Cs2CO3 has been found to be an efficient and chemoselective catalyst for reduction of aldehydes and ketones to alcohols with one equivalent of Ph2SiH2 as the reductant under solvent-free conditions. Most of the aldehydes employed can be effectively hydrosilated quantitatively to give the corresponding silyl ethers in 2 h at room temperature, whereas the hydrosilylation of ketones proceeded smoothly at 80 °C. The catalyst system tolerates a number of functional groups including halogen, alkoxyl, olefin, ester, nitro, cyano, and heteroaromatic groups; the selective hydrosilylation of aldehydes in the presence of ketone can be effectively controlled by temperature; and hydrosilylation of α,β-unsaturated carbonyls resulted in the 1,2-addition products. The catalytic hydrosilylation of suitable dicarbonyls can be applied to the synthesis of poly(silyl ether)s with a high molecular weight and narrow molecular distribution. A general and practical protocol for the hydrosilylation of aldehydes and ketones under solvent free conditions by using a Cs 2CO3/Ph2SiH2 system is presented. Most of the aldehydes employed can be effectively hydrosilylated quantitatively to give the corresponding silyl ethers in 2 h at room temperature, whereas the reactions with ketones proceed smoothly at 80 °C.
HYDROSILYLATION
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Page/Page column 13, (2008/06/13)
The present invention relates to a process for converting a substrate to a product comprising exposing the substrate to a hydrosilane in the presence of a carbene catalyst.
Bis(benzene)chromium: A pre-catalyst for the hydrosilation of ketones and aldehydes, and for the dehydrocoupling of triphenylsilane with primary alcoholst
Bideau, Franck Le,Henique, Josette,Samuel, Edmond,Elschenbroich
, p. 1397 - 1398 (2007/10/03)
Bis(benzene)chromium is a valuable pre-catalyst for the hydrosilation of a-aryl carbonyl compounds as well as for the dehydrocoupling between primary alcohols and triphenylsilane.
Hydrosilylation of Acetophenone with Diphenylsilane in the Presence of Rhodium and Platinum Complexes
Reznikov,Lobadyuk,Spevak,Skvortsov
, p. 910 - 913 (2007/10/03)
Comparative kinetic studies on reaction of acetophenone with diphenylsilane in the presence of rhodium and platinum complexes were performed. Platinum(II) complexes are less active but more selective than rhodium complexes: rhodium-catalyzed acetophenone
