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| 1 | Synthesis,Characterization of Rare-Earth Metal Chlorides Bearing Indolyl-Based NCN Pincer Ligand and Their Catalytic Activity toward 1,4-cis Polymerization of Isoprene显示文摘A novel indolyl-based NCN pincer ligand precursor HL(HL=(1-(2-(CH_(2))_(4)NCH_(2)CH_(2))-3-(2,6-ipr_(2)C_(6)H_(3)N=CH)C_(8)H_(5)N))was rationally and precisely designed,and successfully prepared in a high yield.Lithiation of HL with ^(n)BuLi in n-hexane,followed by treatment with RECl_(3) in THF led to the isolation of rare-earth metal chlorides in monomeric form(κ^(3)-L)RECI_(2)(THF)(RE=Sc(2),Yb(3)),and dimeric form[(κ^(3)-L)RECI(THF)(μ-Cl)]_(2)(RE=Er(4),Y(5))bearing the novel indolyl-based NCN pincer ligand in designed pincer ligation depending on different metal ionic radii;and the chloride bridged rare-earth metal and lithium mixed complexes in form(κ^(2)-L)_(2)RE(μ-Cl)_(2)Li(THF)_(2)(RE=Y(6),Dy(7)).All complexes were fully characterized and their structures were determined.The diamagnetic complexes 2,5 and 6 were furtherly characterized by the NMR spectroscopic method.The catalytic activity studies revealed that the central metal ions,borates,aluminum alkyls,and ligation of the central metal ions have influences on catalytic activity,and regio-and stereoselectivity for the polymerization of isoprene.With cooperation of the cocatalysts,the pincer-type yttrium chloride 5 initiated the isoprene polymerization with a high activity producing polymers with high regio-and stereoselectivity(1,4-cis polymers up to 99.6%),and the Mn as high as 8.76×10^(5). | Zeming Huang Shaowu Wang Xiancui Zhu Yun Wei Qingbing Yuan Shuangliu Zhou Xiaolong Mu Hua Wang | 2021 | Chinese Journal of Chemistry2021，39，12： | 2 |
| 2 | Rare-Earth Metal Chlorides Catalyzed One-pot Syntheses of Quinolines under Solvent-free Microwave Irradiation Conditions显示文摘在微波照耀和没有溶剂的条件下面,稀土元素的金属氯化物(RECl3 ) 是有效催化剂让喹啉衍生物的一个壶合成交上产品对通过醛,胺,和炔属羟的多部件反应的优秀收益好。没有催化活动的著名损失,稀土元素的金属氯化物能在六次被再循环。这条新合成途径有一短反应时间,产品的高收益,运作的简洁,宽广底层范围,环境地友好的性质和商业地可得到的催化剂的突出的特征。它在器官的合成作为催化剂扩大稀土元素的金属混合物的应用。 | Lijun Zhang Bing Wu Yongqing Zhou Jing Xia Shuangliu Zhou Shaowu Wang | 2013 | Chinese Journal of Chemistry2013，31，4： | 1 |
| 3 | Highly atom efficient guanylation of both aromatic and secondary amines catalyzed by simple lanthanide ami des 显示文摘 | Qinghai Li Shaowu Wang Shuangliu Zhou | 2007 | J Org Chem2007，72，： | 1 |
| 4 | Synthesis, structure, and catalytic activity of rare-earth metal amides with a neutral pyrrolyl-functionalized indolyl ligand显示文摘The reactions of neutral pyrrolyl-functionalized indole with rare-earth metal amides [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 produced the rare-earth metal complexes [(Me3Si)2N]2RE([η1:μ-η2-3-(2-(N–CH3)C4H3NCH=N–CH2CH2)C8H5N])(μ-Cl)Li(THF)(RE = Er, Y) having indolyl ligand η1 bonded to rare-earth metal ion and η2 bonded to lithium ion. The catalytic activities of these lanthanide amido complexes for addition of terminal alkynes to aromatic nitriles were explored. Results reveal that these complexes displayed a good catalytic activity for the addition reaction under mild conditions. | YANG Song ZHU XianCui ZHOU ShuangLiu WANG ShaoWu FENG ZhiJun WEI Yun MIAO Hui GUO LiPing WANG FenHua ZHANG GuangChao GU XiaoXia MU XiaoLong | 2014 | Science China Chemistry2014，57，8： | 1 |
| 5 | Unusual selective reactivity of the rare-earth metal complexes bearing a ligand with multiple functionalities显示文摘Ligands play a key role in controlling activity of organometallic complexes so that development of new ligands to overcome the challenge is the main topic of modern chemistry.The first example of 1,1-hydride migratory insertion and intramolecular redox reaction has been realized in this work by applying a new ligand in rare-earth metal chemistry.The novel rare-earth metal complexes L^(Mes)RECH2TMS(THF)(RE=Y(1a),Dy(1b),Er(1c),Yb(1d),L^(Mes)=1-(3-(2,6-iPr_(2)C_(6)H_(3)N=CH)C8H4N)-CH_(2)CH_(2)-3-(2-CH2–4,6-Me_(2)C_(6)H_(2))-(N(CH)_(2)NC),THF=tetrahydrofuran)bearing a ligand with imino,indolyl,NHC(N-heterocyclic carbene)multiple functionalities were synthesized and characterized.Treatment of complexes 1 with silanes(PhSiH3or PhSiH2Me or PhSiD3)selectively produced the unprecedented 1,1-hydride(or deuterated H)migratory insertion of the indolyl moiety of the novel unsymmetrical dinuclear rare-earth metal complexes 2.The complex 2a reacts with Ph_(2)C=O to give the selective C=O double bond insertion to the RE–Co-methylene-Mesbond product 3a which further reacts with another Ph_(2)C=O(or DMAP,4-N,N-dimethylaminopyridine)affording the novelμ-η^(2):η^(3)-dianionic 3-iminoindolyl dinuclear rare-earth metal complex 4a.The latter is formed through an unusual intramolecular redox reaction(through electron migration from the 2-carbanion of the indolyl ring to the imino motif)resulting in the re-aromatization of the indolyl ring. | Dongjing Hong Thayalan Rajeshkumar Shan Zhu Zeming Huang Shuangliu Zhou Xiancui Zhu Laurent Maron Shaowu Wang | 2023 | Science China Chemistry2023，66，1： | 0 |
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