作者:Victoria A. Pollard、Allan Young、Ross McLellan、Alan R. Kennedy、Tell Tuttle、Robert E. Mulvey
DOI:10.1002/anie.201906807
日期:2019.8.26
tested as a catalyst for hydrophosphination of alkynes, alkenes, and carbodiimides. Based on the collective evidence of stoichiometric reactions, NMR monitoring studies, kinetic analysis, and DFT calculations, a mechanism involving deprotonation, alkyne insertion, and protonolysis is proposed for the [iBu3AlHLi]2 aluminate catalyzed hydrophosphination of alkynes with diphenylphosphine. This study enhances
[EN] DISUBTITUTED AZETIDINES, PYRROLIDINES, PIPERIDINES AND AZEPANES AS INHIBITORS OF MONOAMINE OXIDASE B FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] AZÉTIDINES, PYRROLIDINES, PIPÉRIDINES ET AZÉPANES DI-SUBSTITUÉS EN TANT QU'INHIBITEURS DE MONOAMINE OXYDASE B POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:UNIV OF LJUBLJANA
公开号:WO2018055096A1
公开(公告)日:2018-03-29
This invention relates to new inhibitors of MAO-Bwith the general formula I, where substituents are described in patent description. Compounds can be in the form of pure enantiomers or as racemic mixtures, or in the form of pharmaceutically acceptable salts. The present invention relates to the use of these inhibitors for the alleviation of symptoms and treatment of acute and chronic neurological disorders, cognitive and neurodegenerative diseases.
Zirconium complexes supported by multidentate aminophenolato ligands were synthesized and characterized. The catalytic activities of neutral zirconium complexes and their cationic derivatives in the hydrophosphination of alkenes as well as heterocumulenes have been investigated and compared. Neutralcomplex 1 bearing a multidentate amino mono(phenolato) ligand exhibited high activity in hydrophosphination
N-Heterocyclic Carbene-Ytterbium Amide as a Recyclable Homogeneous Precatalyst for Hydrophosphination of Alkenes and Alkynes
作者:Jia Yuan、Hongfan Hu、Chunming Cui
DOI:10.1002/chem.201600512
日期:2016.4.11
carbene–ytterbium(II) amides (NHC)2Yb[N(SiMe3)2]2 (1: NHC: 1,3,4,5‐tetramethylimidazo‐2‐ylidene (IMe4); 2: NHC: 1,3‐diisopropyl‐4,5‐dimethylimidazol‐2‐ylidene (IiPr)) and the NHC‐stabilized rare‐earth phosphide (IMe4)3Yb(PPh2)2 (3) have been synthesized and fully characterized. Complexes 1–3 are active precatalysts for the hydrophosphination of alkenes, alkynes, and dienes and exhibited much superior catalytic
Hydrophosphination using [GeCl{N(SiMe<sub>3</sub>)<sub>2</sub>}<sub>3</sub>] as a pre-catalyst
作者:A. N. Barrett、H. J. Sanderson、M. F. Mahon、R. L. Webster
DOI:10.1039/d0cc05792d
日期:——
The hydrophosphination of activated alkenes and internal alkynes is reported using a remarkably simple Ge(iv) pre-catalyst. Preliminary mechanistic investigations indicate that the reaction proceeds via a redox neutral catalytic cycle.