作者:Moni Chauhan、Bhanu P. S. Chauhan、Philip Boudjouk
DOI:10.1021/ol005507t
日期:2000.4.1
highly selective catalytic route to silylesters is reported. Commercially available silanes with Si-H functionality were converted to silyl or siloxy esters in the presence of Pd(OAc)2 under mild reaction conditions. This protocol was found to be equally applicable for the modification of multiple silicon centers in one framework and lead to the corresponding polysilyl esters in high yields. A comparison
[EN] PROCESS FOR THE PRODUCTION OF HYDROCARBYL SILYL CARBOXYLATE COMPOUNDS<br/>[FR] PROCEDE SERVANT A PREPARER DES COMPOSES D'HYDROCARBYLE SILYLE CARBOXYLATE
申请人:SIGMA COATINGS BV
公开号:WO2004056837A1
公开(公告)日:2004-07-08
A process for the production of hydrocarbyl silyl carboxylates of formula (I)is described. Wherein n represents a number of dihydrocarbylsiloxane units from 0 to 1000, by reaction of a carboxylic acid of formula (II) with a hydrocarbyl silyl compound of formula (III) the reaction being carried out in the presence of a silaphilic catalyst.
Process for the production of hydrocarbyl silyl carboxylate compounds
申请人:Plehiers Mark
公开号:US20050222446A1
公开(公告)日:2005-10-06
A process for the production of hydrocarbyl silyl carboxylatcs of formula (I)is described. Wherein n represents a number of dihydrocarbylsiloxane units ftom 0 to 1000, by reaction of a carboxylic acid of formula (II) with a hydrocarbyl silyl compound of formula (III) the reaction being carried out in the presence of a silaphilic catalyst.
This account reports the new directions in the synthesis and characterization of polysiloxane-encapsulated metal nanoparticles and their applications to catalysis. These materials are prepared by sequestering metal ions with hydropolysiloxanes followed by chemical reduction to yield the corresponding zerovalent metal nanoparticles. The size and processability of such particles depends on the metal to polysiloxane ratios. Our method enables routine formation of stable nanometallic reservoirs in organic solvents avoiding particle aggregation during the storage as well as nucleation and growth process. Catalytic activity of nanoparticles vs metal complexes compares favorably for silaesterification reactions. We also demonstrate the utility of such reservoirs in grafting the surface properties of nanosized silver particles by ligand exchange reactions with thiols and phosphine oxide surfactants. (C) 2003 Elsevier B.V. All rights reserved.
Reactivity of Ir-NSiN Complexes: Ir-Catalyzed Dehydrogenative Silylation of Carboxylic Acids
作者:Alejandro Julián、Karin Garcés、Ralte Lalrempuia、E. A. Jaseer、Pilar García-Orduña、Francisco J. Fernández-Alvarez、Fernando J. Lahoz、Luis A. Oro
DOI:10.1002/cctc.201701488
日期:2018.3.7
precursor for the preparation of Ir(NSiN) complexes (NSiN=fac‐bis‐(pyridine‐2‐yloxy)methylsilyl). The reaction of [Ir(μ‐Cl)(cod)]2 with bis‐(pyridine‐2‐yloxy)methylsilane enabled the synthesis of [Ir(H)(Cl)(NSiN)(η2‐cod)] with an uncommon η2‐coordination mode for the cod ligand. The application of Ir–NSiN species as catalysts precursors for the dehydrogenativesilylation of carboxylic acids was also explored