METHOD FOR COUPLING HALOGEN-SUBSTITUTED AROMATIC COMPOUNDS WITH ORGANIC COMPOUNDS COMPRISING TRIALKYLSILYL-SUBSTITUTED HETEROATOMS
申请人:Kreipl Andreas
公开号:US20120142937A1
公开(公告)日:2012-06-07
A process is provided for the preparation of aryl-heteroatom-bridged compounds by reacting a halogen-substituted aromatic compound with a trialkylsilyl-substituted heteroatom-containing organic compound.
Small Substituents Make Large Differences: Aminopyrimidinyl Phosphanes Undergoing C–H Activation
作者:Saeid Farsadpour、Leila Taghizadeh Ghoochany、Yu Sun、Werner R. Thiel
DOI:10.1002/ejic.201100659
日期:2011.10
synthesised from (C6H5CN)2PdCl2 and (2-aminopyrimidinyl)phosphanes show different coordination modes depending on the nature of the amino substituent attached to the pyrimidine ring. Whereas P,N-coordination is observed for primary and secondary amino groups, tertiary amino groups lead to C–Hactivation at the pyrimidine ring. These differences result in strongly different catalytic activities in the
Coordination of Nickel(II) by 3-(2-(Diphenylphosphanyl)phenyl)-1<i>H</i>-pyrazole
作者:Alexandra D. Schmidt、Yu Sun、Werner R. Thiel
DOI:10.1002/zaac.201500579
日期:2015.10
)phenyl]-1H-pyrazole a series of four- and five-coordinate diamagnetic nickel(II) complexes were synthesized and structurally characterized. The resulting complexes show dynamic NMR spectra reflecting a high degree of flexibility in the ligand backbone. Protonation and deprotonation of the pyrazole moiety allows interconversion of the nickel(II) complexes.
从易于获得的 3-[2-(二苯基膦基)苯基]-1H-吡唑开始,合成了一系列四配位和五配位抗磁性镍 (II) 配合物并对其进行了结构表征。所得配合物显示出动态 NMR 光谱,反映了配体骨架的高度灵活性。吡唑部分的质子化和去质子化允许镍 (II) 配合物的相互转化。