477983-23-6Relevant articles and documents
Platinum(II)-Crosslinked Single-Chain Nanoparticles: An Approach towards Recyclable Homogeneous Catalysts
Kn?fel, Nicolai D.,Rothfuss, Hannah,Willenbacher, Johannes,Barner-Kowollik, Christopher,Roesky, Peter W.
supporting information, p. 4950 - 4954 (2017/04/24)
We introduce the synthesis and in-depth characterization of platinum(II)-crosslinked single-chain nanoparticles (PtII-SCNPs) to demonstrate their application as a recyclable homogeneous catalyst. Specifically, a linear precursor copolymer of styrene and 4-(diphenylphosphino)styrene was synthesized via nitroxide-mediated polymerization. The triarylphosphine ligand moieties along the backbone allowed for the intramolecular crosslinking of single chains via the addition of [Pt(1,5-cyclooctadiene)Cl2] in dilute solution. The successful formation of well-defined PtII-SCNPs was evidenced by size exclusion chromatography, dynamic light scattering, nuclear magnetic resonance (1H, 31P{1H}, 195Pt), and diffusion-ordered spectroscopy. Finally, the activity of the PtII-SCNPs as homogeneous, yet recyclable catalyst was successfully demonstrated using the example of the amination of allyl alcohol.
Palladium-catalyzed selective aminoamidation and aminocyanation of alkenes using isonitrile as amide and cyanide sources
Jiang, Huanfeng,Gao, Hanling,Liu, Bifu,Wu, Wanqing
supporting information, p. 15348 - 15351 (2015/01/08)
A mild and efficient palladium-catalyzed intermolecular aminoamidation and aminocyanation reaction of alkenes with a broad substrate scope has been developed. This cyclization process provides a valuable synthetic tool for obtaining substituted indolines, tetrahydroisoquinolines and pyrrolidines in good to excellent yields. This journal is
Assisted tandem catalytic RCM-aromatization in the synthesis of pyrroles and furans
Schmidt, Bernd,Krehl, Stefan,Jablowski, Eric
supporting information; experimental part, p. 5119 - 5130 (2012/08/07)
An assisted tandem catalytic transformation of diallyl amines and diallyl ethers into N-aryl pyrroles and furans, respectively, is described. The sequence relies on ring closing metathesis followed by dehydrogenation of the initially formed dihydropyrroles and dihydrofurans. Both steps are Ru-catalyzed, but the sequence requires only one precatalyst, because conversion of the metathesis catalyst into the dehydrogenation catalyst is achieved in situ, triggered by the oxidant tert-butyl hydroperoxide.
Synthesis of heterocyclic compounds by ring-closing metathesis (RCM): Preparation of oxygenated or nitrogenated compounds
Sanchez, Isabel,Pujol, Maria Dolors
, p. 1823 - 1828 (2007/10/03)
Novel methods for heterocyclic synthesis by metathesis have been developed. Versatile heterocyclic compounds were easily prepared in good yield from intermediate olefins by ring-closing olefin metathesis using the catalyst dichloro(benzylidene)bis(tricycl
