PREPARATION OF NITRILES FROM ETHYLENICALLY UNSATURATED COMPOUNDS
申请人:Mastroianni Sergio
公开号:US20110118499A1
公开(公告)日:2011-05-19
A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a compound of formula (I):
The subject process is particularly useful for the synthesis of adiponitrile from butadiene.
new class of bidentate, aza-based phosphinic amide ligands of the type RN(H)P(O)(2-py)2 (2-py = 2-pyridyl) was synthesized within minutes via a one-pot process including Staudinger reaction of an organic azide (RN3) with 2-pyridylphosphines, followed by partial, unprecedented hydrolysis under loss of one aromatic substituent. The structure of the unusual-hydrolysis product H2CCH(CH2)9N(H)P(O)(2-py)2 (5a)
Fluxional ligand migrations in triosmium clusters containing 2-pyridylphosphines
作者:Antony J. Deeming、Martin B. Smith
DOI:10.1039/c39930000844
日期:——
The cluster [Os3(CO)10(µ-L)](L = Ph2PC5H4N)(X-ray structure reported), containing the diaxially coordinated 2-pyridyldiphenylphosphine bridge, undergoes rapid transfer of the pyridine between two metal atoms while the phosphorus atom remains firmly coordinated to the third.
Towards rainbow photo/electro-luminescence in copper(<scp>i</scp>) complexes with the versatile bridged bis-pyridyl ancillary ligand
作者:Gilbert Umuhire Mahoro、Elisa Fresta、Margaux Elie、Davide di Nasso、Qi Zhang、Jean-François Lohier、Jean-Luc Renaud、Mathieu Linares、Reinhold Wannemacher、Juan Cabanillas-Gonzalez、Rubén D. Costa、Sylvain Gaillard
DOI:10.1039/d1dt01689j
日期:——
synthesis and characterization of a family of copper(I) complexes bearing a bridged bis-pyridyl ancillary ligand is reported, highlighting how the bridge nature impacts the photo- and electro-luminescent behaviours within the family. In particular, the phosphonium bridge led to copper(I) complexes featuring good electrochemical stability and high ionic conductivity, as well as a stark blue-to-orange luminescence
报道了带有桥接双吡啶基辅助配体的铜 ( I ) 配合物家族的合成和表征,突出了桥接性质如何影响该家族内的光致和电致发光行为。特别是,鏻桥导致铜(I)配合物具有良好的电化学稳定性和高离子电导率,以及与其他配合物相比明显的蓝色到橙色发光转变。这导致高性能发光电化学电池在大约10 mJ 的稳定性。40 cd m -2比其他复合体高一个数量级。总的来说,这项工作揭示了双吡啶基辅助配体的桥接性质对光物理特征、成膜以及最终器件性能的关键作用。