Catalytic Hydrogenation of Olefins in the presence of Wilkinson’s Catalyst The first homogeneous catalytic hydrogenation of unsaturated o..
N-(3-oxo-4-hexenoyl) homoserine lactone was synthesized and then reduced with Wilkinson's catalyst in the presence of tritium gas to form N-[3-oxo-(4,5- 3 H 2 )-hexanoyl] homoserine locatone (45-55 Ci/mmol). The labelled compound was indistinguishable from the autoinducer for Vibrio ...
rhodium-catalyzed1,2,3-triaryl naphthaleneAn efficient Rh-catalyzed dimerization of diaryl acetylenes was achieved in the presence of Wilkinson catalyst, AgF2, and 1.5 equivalent of PhMgBr in toluene, providing the 1,2,3-triaryl naphthalene derivatives in moderate to good yields. Supplemental ...
Synthesis of Bis(trichlorosilyl)ethanes via HydrosilylationAddition of trichlorosilane to vinyltrichlorosilane in the presence of tetrakis/triphenylphosphine/-palladium/0/results in the selective formation of 1,1-bis/trichlorosilyl/ethane/卤-adduct/, while in the presence of Wilkinson''s catalyst as ...
The Wilkinson catalyst has been 'heterogenized' by anchoring to a copolymer (styrene-divinylbenzene) via ligand exchange reaction. The polymer support with a chelating ligand was prepared by sequential attachment of ethylenediamine to chloromethylated styrene-divinylbenzene (2% and 5%) copolymer. The ...
The homologation first uses Wilkinson’s catalyst (2.5 mol%) with pinacol borane to give boronic ester 4 as a single isomer. The presence of cesium carbonate is crucial for the suppression of competitive and undesired alkene reduction. Matteson homologation using n-BuLi and CH2ICl was then us...
关键词: kelsoene annulation bifunctional reagent photocycloaddition Wilkinson's catalyst Lombardo's reagent DOI: 10.1055/s-2001-18063 被引量: 5 年份: 2001 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 thieme-connect.de thieme-connect.de (全网免费下载) 国家科技图书文献中心 (权威机构)...
Terminal alkenes have been efficiently prepared via a rhodium-catalyzed olefination procedure using Wilkinson's catalyst in the presence of triphenylphosphine, 2-propanol and trimethylsilyldiazomethane. Optimized reaction conditions are described for aldehydes and ketones, as well as alternative work up proced...
Copper mediated stereoselective synthesis of C-glycosides from unactivated alkynes. Commun. Chem. 49, 10154–10156 (2013). Article CAS Google Scholar Wilkinson, B. L., Bornaghi, L. F., Poulsen, S.-A. & Houston, T. A. Synthetic utility of glycosyl triazoles in carbohydrate chemistry. ...
Homogeneous Catalytic Dehydrogenation/Dehydrocoupling of Amine-Borane Adducts by the Rh(I) Wilkinson's Complex Analogue RhCl(PHCy2)3(Cy = cyclohexyl) The Rh(I) complex RhCl(PHCy2)3 (1) (Cy = cyclohexyl, C6H11) has been investigated as a catalyst for the dehydrogenation/dehydrocoupling of di...