A series of diphosphoramidites has been synthetized with a piperazine, homopiperazine, and an acyclic 1,2-diamine unit in the backbone. New compounds were tested alongside related N -acyl phosphoramidites as ligands in the Rh-catalyzed hydroformylation of n -octenes to investigate their influence ...
et al. Helicene-based phosphite ligands in asymmetric transition-metal catalysis: exploring Rh-catalyzed hydroformylation and Ir-catalyzed allylic amination. Eur. J. Org. Chem. 2011, 3849-3857 (2011).Helicene-Based Phosphite Ligands in Asymmetric Transition-Metal Catalysis: Exploring Rh-Catalyzed ...
Encouraged by the success of monophosphoroamidite ligands in the hydroformylation of allyl cyanide, we herein report the use of a biaryl-based monophosphoroamidite and aminophosphine ligand library L1–L7a–f (Fig. 1) in the Rh-catalyzed asymmetric hydroformylation of vinylarenes and heterocyclic ...
Rhodium(II)-Catalyzed and Thermally Induced Intramolecular Migration of N-Sulfonyl-1,2,3-triazoles New Approaches to 1,2.铑(II)催化和N-Sulfonyl-1热诱导分子内迁移,2 热度: Asymmetric hydroformylation of vinyl arenes catalyzed by furanoside diphosphinites-Rh(I) complexes ...
The catalytic activities of the complexes of Pd, Ru, Co and Rh with PPh3, AsPh3 and SbPh3 ligands have been investigated for the hydroformylation of ethylene in as benzene solvent. All the studied metal complexes, other than that of Rh, with AsPh3 ligand were found to show better ...
关键词: Rhodium Heteropolyacid Hydroformylation Cyclotrimerization Cyclohexene Trioxane DOI: 10.1016/S1381-1169(03)00375-3 被引量: 9 年份: 2003 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 全文购买 Elsevier (全网免费下载) Elsevier 国家科技图书文献中心 (权威机构) Semantic Scholar Ing...
investigated methods for the conversion of olefins to aldehydes [1–4]. Among tran- sition metal complexes, rhodium and cobalt show the highest catalytic activity for the hydroformylation re- action, with rhodium being 103–104times more active than cobalt [1]. The acetalization–hydroformylation ...
S.E.M.D.L. Hunter, P.E. Garrou, R.A. Dubois, Syn-gas reactions with cobalt subgroup clusters. 2. Dicyclopentadiene hydroformylation catalyzed by RhxCo4-x(CO)12 (x = 4, 2-0)/tertiary amine ctalysts, Appl. Catal. 19 (1985) 259-273....
The efficiency of the ligands was tested in the Rh-catalyzed hydroformylation of styrene, hept-1-ene, and oct-1-ene in super-critical carbon dioxide (scCO 2 ) and toluene. The use of scCO 2 as the reaction medium allows one to attain higher conversions and regioselectivities compared to ...
Rh-catalyzed asymmetric hydroformylation of functionalized 1,1-disubstituted olefins. Wang, Xiao,Buchwald, Stephen L. Journal of the American Chemical Society . 2011Rh-Catalyzed AsymmetricHydroformylation of Functionalized1,1-Disubstituted Olefins. Wang X,Buchwald S. L. Journal of the American Chemical ...