用一当量的吡咯基官能化芳基酰胺配体2,5-Me 2 C 4 H 2 NCH 2 CH 2处理稀土三(邻-二甲基氨基苄基)配合物Ln(CH 2 C 6 H 4 NMe 2 - o)3 NHC 6 H 5和2,5-Me 2 C 4 H 2 NSiMe 2 NHC 6 H 5在甲苯中生成的芳酰胺稀土金属双(氨基苄基)配合物(2,5-Me 2 C 4H 2 NCH 2 CH 2 NC 6 H 5)Ln(CH 2 C 6 H 4 NMe 2 - o)2(Ln = Sc(1),La(2),Lu(3))和(2,5-Me 2 C 4 H 2 NSiMe 2 NC 6 H 5)Ln(CH 2 C 6 H 4 NMe 2 - o)2(Ln = Lu(5),Y(6))。Y(CH 2 C 6 H 4 NMe 2 - o)3与2,5-Me 2 C 4 H 2 NCH 2 CH 2 NHC 6 H 5的摩尔比为1:1或1:2的反应特别生成了双(芳基酰胺)
The first series of lanthanide amido complexes incorporating a neutral pyrrole ligand in a constrained geometry architecture were synthesized, and their bonding, reactions, and catalytic activities were studied. Treatment of [(Me3Si)2N]3Ln(μ-Cl)Li(THF)3 with 1 equiv of (N-C6H5NHCH2CH2)(2,5-Me2C4H2N) (1) afforded the first example of bisamido lanthanide complexes having the neutral pyrrole η5-bonded
Facial Preparation of Sulfonic Acid-Functionalized Magnetite-Coated Maghemite as a Magnetically Separable Catalyst for Pyrrole Synthesis
作者:Hajar Mahmoudi、Abbas Ali Jafari
DOI:10.1002/cctc.201300623
日期:2013.12
The synthesis, characterization, and catalytic performance of the new sulfonic acid supported on the magnetic nanoparticles with maghemite coating were reported. The morphology, particle size, structure, magnetic properties, and the formation of nanoparticles with narrow size distribution were investigated. Chemical analysis was performed by using TEM, wide‐angle XRD, FTIR spectroscopy, and X‐ray fluorescence
Controlled iso-specific polymerization of 2-vinylpyridine catalyzed by arylamide-ligated rare-earth metal aminobenzyl complexes
作者:Min Li、Chaopan Wang、Jue Chen、Zhiyong Guo、Zehuai Mou、Yunjie Luo
DOI:10.1039/c8dt03330g
日期:——
were highly active for polymerization with 2-vinylpyridine to afford iso-tactic polymers with high molecular weight and narrow molecular weight distribution. Complex 4 promoted the polymerization in a controlled fashion, and the iso-selectivity of the polymerization reached up to a Pm value of 0.98. Analyses of the oligomer by NMR and MALDI-TOF showed that the polymerization proceeded via a group transfer
用一当量的吡咯基官能化芳基酰胺配体2,5-Me 2 C 4 H 2 NCH 2 CH 2处理稀土三(邻-二甲基氨基苄基)配合物Ln(CH 2 C 6 H 4 NMe 2 - o)3 NHC 6 H 5和2,5-Me 2 C 4 H 2 NSiMe 2 NHC 6 H 5在甲苯中生成的芳酰胺稀土金属双(氨基苄基)配合物(2,5-Me 2 C 4H 2 NCH 2 CH 2 NC 6 H 5)Ln(CH 2 C 6 H 4 NMe 2 - o)2(Ln = Sc(1),La(2),Lu(3))和(2,5-Me 2 C 4 H 2 NSiMe 2 NC 6 H 5)Ln(CH 2 C 6 H 4 NMe 2 - o)2(Ln = Lu(5),Y(6))。Y(CH 2 C 6 H 4 NMe 2 - o)3与2,5-Me 2 C 4 H 2 NCH 2 CH 2 NHC 6 H 5的摩尔比为1:1或1:2的反应特别生成了双(芳基酰胺)