5730-75-6Relevant articles and documents
The suzuki-miyaura reaction performed using a palladium-n-heterocyclic carbene catalyst and a weak inorganic base
Izquierdo, Frédéric,Corpet, Martin,Nolan, Steven P.
supporting information, p. 1920 - 1924 (2015/03/18)
N-Heterocyclic carbenes (NHCs) have been shown to be useful ligands for the Suzuki-Miyaura cross-coupling at low catalyst loadings. We now report that the commercially available and air-stable [Pd(IPr)(cin)Cl] pre-catalyst permits the formation of various functionalized biaryls from aryl chlorides and boronic acids (37 examples) under very mild conditions using a mixture of ethanol/water as solvent and an inorganic base. [Pd(IPr)(cin)Cl] permits an operationally simple Suzuki-Miyaura reaction under very mild conditions using a mixture of ethanol/water as solvent and an inorganic base.
Dynamics of the glycosidic bond: Conformational space of lactose
Erdelyi, Mate,D'Auvergne, Edward,Navarro-Vazquez, Armando,Leonov, Andrei,Griesinger, Christian
experimental part, p. 9368 - 9376 (2011/10/09)
The dynamics of the glycosidic bond of lactose was studied by a paramagnetic tagging-based NMR technique, which allowed the collection of an unusually large series of NMR data for a single compound. By the use of distance- and orientation-dependent residual dipolar couplings and pseudocontact shifts, the simultaneous fitting of the probabilities of computed conformations and the orientation of the magnetic susceptibility tensor of a series of lanthanide complexes of lactose show that its glycosidic bond samples syn/syn, anti/syn and syn/anti φ/I regions of the conformational space in water. The analysis indicates a higher reliability of pseudocontact shift data as compared to residual dipolar couplings with the presently available weakly orienting paramagnetic tagging technique. The method presented herein allows for an improved understanding of the dynamic behaviour of oligosaccharides. Copyright
Use of functionalized onium salts as a soluble support for organic synthesis
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Page/Page column 51, (2010/11/25)
The invention relates to the use of a onium salt functionalized by at least one organic function, as a soluble support, in the presence of at least one organic solvent, for organic synthesis of a molecule, in a homogenous phase, by at least one transformation of said organic function. The onium salt enables the synthesized molecule to be released. The onium salt is present in liquid or solid form at room temperature and corresponds to formula A1+, X1?, wherein A1+ represents a cation and X1? represents an anion.